Red Cross blood drives, celebrate World Blood Donor Day by donating blood at various sites in the county. Thursday: Department of Agriculture Beltsville Agricultural Research Center-West, 10300 Baltimore Blvd., Beltsville, 9 a.m.-2:30 p.m., Baden Volunteer Fire Department, 16608 Brandywine Rd., 2-7 p.m.; Saturday: Courts of Praise Christian Church, 3297 Brinkley Rd., Temple Hills, 10 a.m.-3:30 p.m. Call or visit the Web site for more opportunities. Free; appointments welcome. 800-733-2767 or www.redcrossblood.org .
Temple Hills computer class, learn basics including how to use a mouse and keyboard and work with Windows programs. 9:30 a.m., Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free; registration required. 301-630-4900.
Greenbelt story time, for ages 2-5, stories, songs, rhymes and finger plays. 10:30 a.m. Thursdays, through June 26, Greenbelt Library, 11 Crescent Rd. Free. 301-345-5800.
Foreclosure clinic, Housing Counseling Services provides foreclosure prevention services to Maryland homeowners. 3 p.m., Faith Temple No. 2, 211 Maryland Park Dr., Seat Pleasant. Free; appointment required. 202-667-7715 or email@example.com .
“Gasland ,” the 2010 documentary examines the negative effects of natural-gas drilling. 3:30 p.m., Glenarden Library, 8724 Glenarden Pkwy., Glenarden. Free. 301-772-5477.
Drop-in computer help, learn how to use the Internet and other basic computer skills. 4-5 p.m., New Carrollton Library, Computer Lab, 7414 Riverdale Rd., New Carrollton. Free. 301-459-6900.
Lego playtime, for ages 6-10, play with Legos and read stories. 4 p.m., Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free. 301-630-4900.
Berwyn Heights bird walk, members of the Prince George’s Audubon Society and Patuxent Bird Club host this walk through habitats including open water, wetlands, forests and meadows, with sighting opportunities for woodland and field songbirds, waterfowl and raptors. 6 p.m., meet at the parking lot for the Luther Goldman Birding Trail, Lake Artemesia Natural Area, Ruatan Street and Berwyn Road, Berwyn Heights, Lake Artemesia Natural Area, Berwyn Road and Ballew Avenue. Free. 301-459-3375.
Bipolar support group, for those suffering from the mental illness. Sponsored by the National Alliance on Mental Illness. 6-7:30 p.m., Laurel Regional Hospital, 7300 Van Dusen Rd., Laurel. Free; registration required. Connie Houchens at 410-867-7927.
Route 1 farmer’s market and bazaar, shop fresh produce, prepared foods and crafts from local farmers and small businesses. 4-8 p.m. first Fridays, 8 a.m.-2 p.m. Saturdays, through Sept. 27, Gateway Arts Center, 3901 Rhode Island Ave., Brentwood. 301-864-3860 or www.artlivesheremd.wordpress.com .
First Fridays at Montpelier, stories and crafts, tours, games and more. 11 a.m.-6 p.m., Montpelier Mansion, 9650 Muirkirk Rd., Laurel. Free. 301-377-7817.
Friday Night Live Concert Series, Collect All 5 band will play pop, country, rock and alternative hits in an outdoor concert by the water. 7-9 p.m., National Harbor, 150 National Plaza, National Harbor. Free. 877-628-5427.
Toastmasters event, for age 18 and older, the Oxon Hill Toastmaster Club will host an organization meeting for new members. 7 p.m., Levi’s BBQ Restaurant, 6201 Livingston Rd., Oxon Hill. Free; reservations requested. 240-723-3157 or firstname.lastname@example.org .
Jug Bay bird walk, for age 12 and older, learn how to identify birds by sight and sound. 8-11 a.m. Saturdays, Jug Bay Wetlands Sanctuary, 1361 Wrighton Rd., Lothian. $5; seniors $3. 410-741-9330.
“Talkin’ baseball,” Thom Loverro will discuss his book, “Orioles Magic .” 9 a.m., Brighton Gardens, 7110 Minstrel Way, Columbia. Free. 410-740-1145.
Branch Avenue in Bloom farmers market, shop fresh fruit, meat and other produce by local growers. 9 a.m.-2 p.m. Iverson Mall, parking lot, 3737 Branch Ave., Temple Hills. Lamar Weaver at 301-702-2250, www.facebook.com/branchavenueinbloom or email@example.com .
Community yard sale, shop new and gently used items. 9 a.m.-noon, St. Nicholas Church, 8603 Contee Rd., Laurel. 301-776-6257.
North College Park farmers market, 9 a.m.-1 p.m., REI-College Park, parking lot, 9801 Rhode Island Ave. 240-888-6972.
Oxon Hill computer demo, learn how to use a mouse and navigate Web sites. 9:15 a.m., Oxon Hill Library, 6200 Oxon Hill Rd. Free; registration required. 301-839-2400.
English conversation club, practice speaking English in a comfortable environment. 10 a.m. Saturdays, through June 28, Oxon Hill Library, 6200 Oxon Hill Rd., Oxon Hill. Free. 301-839-2400.
French-English story time, for families. 10:30 a.m. Saturdays, through June 28, Laurel Library, 507 Seventh St., Laurel. Free. 301-776-6790.
English-Spanish story time, for ages 3-6 with caregiver, children’s books are read in English and Spanish. 11 a.m. Saturdays, Hyattsville Library, 6532 Adelphi Rd., Hyattsville. Free. 301-985-4690.
Crochet basics, bring materials and learn how to crochet. 1 p.m., Mount Rainier Library, 3409 Rhode Island Ave., Mount Rainier. Free. 301-864-8937.
Read to Rover, for ages 7-10, take a favorite book or choose one from the stacks to read to a trained therapy dog. 2 p.m., Surratts-Clinton Library, 9400 Piscataway Rd., Clinton. Free; registration required. 301-868-9200.
Early television in the 1920s, Brian Belanger, National Capital Radio & Television Museum Director, will discuss local inventor C. Francis Jenkins, who established a television station in Wheaton in the late 1920s, and other developments of that era. 2 p.m., Bowie Library, 15210 Annapolis Rd., Bowie. Free. 301-262-7000.
MCOP Charity Softball Classic, NFL player DeSean Jackson and his team compete against Wounded Warrior Amputee softball team in the second annual Medical Center Orthotics and Prosthetics game. Proceeds will benefit veterans’ charities. 7 p.m., Bowie Baysox Stadium, 4101 NE Crain Hwy., Bowie. $20. 301-653-6139 or www.mcopro.com .
Bowie farmers market, shop locally grown produce, flowers, plants, breads, jams. 8 a.m.-noon Sundays, Bowie Center for the Performing Arts, parking lot , 15200 Annapolis Rd. 301-809-3078 or www.cityofbowie.org .
Laurel bingo, ball games and concessions to benefit Laurel Little League. 1 p.m., American Legion Post 60, 2 Main St. $20. 240-595-3353 or firstname.lastname@example.org .
Whooping crane observatory tour, for age 14 and older, observe a pair of endangered adult whooping cranes and learn about the recovery program. 1-2:30 p.m., National Wildlife Visitor Center, 10901 Scarlet Tanager Loop, Laurel. Free; donations welcome; registration required. 301-497-5887.
Hope support group, for people living with depressive illnesses, sponsored by the National Alliance on Mental Illness. 3-5 p.m. Sundays, St. John’s Catholic Church, Education Center, 8912 Old Branch Ave., Clinton. Free; reservations requested. Ruth McMenamin at 301-868-6180.
Computer basics, learn how to create and save documents in Microsoft Word. 6:30 p.m. Mondays, through June 21, New Carrollton Library, 7414 Riverdale Rd., New Carrollton. Free; registration required. 301-459-6900.
Laurel mental health support group, for families of people with mental illnesses, sponsored by the National Alliance on Mental Illness. 7-8:30 p.m. Mondays, Holy Trinity Lutheran Church, 7607 Old Sandy Spring Rd., Laurel. Free; reservations requested. Steven Gray at 410-772-9300 or email@example.com .
Oxon Hill book discussion, a librarian leads a talk about Sonia Sotomayor’s “My Beloved World .” 2 p.m., Oxon Hill Library, 6200 Oxon Hill Rd. Free. 301-839-2400.
Afternoon tea book discussion, a guided talk about Randy Pausch’s “The Last Lecture .” 2:30 p.m., Surratts-Clinton Library, 9400 Piscataway Rd., Clinton. Free. 301-868-9200.
E-readers drop-in assistance, for people with Kindle, iPads or other e-reading devices, learn how to download e-books, music and more using the library. 4 p.m., Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free. 301-630-4900.
Girls read, for girls in grades 3-5, practice reading skills with games and other activities and book discussion. 4 p.m., Oxon Hill Library, 6200 Oxon Hill Rd., Oxon Hill. Free. 301-839-2400.
Clinton support group, for people suffering from mental illness, sponsored by the National Alliance on Mental Illness. 6:30-8 p.m., Colony South Hotel, 7401 Surratts Rd, Clinton. Free; registration required. Mary Heath at 301-856-8221 or firstname.lastname@example.org .
Bowie knit and crochet group, bring materials. 7 p.m., South Bowie Library, 15301 Hall Rd. Free. 301-850-0475.
District Heights chess club, for all ages, learn to play or improve skills. 7 p.m., Spauldings Library, 5811 Old Silver Hill Rd., District Heights. Free. 301-817-3750.
Family story time, stories, songs, finger plays, and more for the entire family. 7 p.m., South Bowie Library, 15301 Hall Rd., Bowie. Free. 301-850-0475.
Audubon Society member-share night, share your favorite nature/wildlife photos, stories or whatever you have, hosted by the Prince George’s Audubon Society and Patuxent Bird Club. New members welcome. 7:30 p.m., College Park Airport Annex, 1909 Corporal Frank Scott Drive, College Park. Free. 301-262-5148 or www.pgaudubon.org .
College Park Youth Choir and Vocetti, the choirs perform a spring concert. 7:30 p.m., St. Andrews Episcopal Church, 64512 College Avenue, College Park. Free. 703-455-2500.
Stroke education meeting, for stroke survivors and caregivers, share experiences and coping techniques; speakers will provide information about prevention and management. 1-3 p.m. second Wednesdays, Doctors Community Hospital, Professional Office Building, first-floor conference room, 8100 Good Luck Rd., Lanham. Free; registration required. 301-324-4968.
Afternoon book discussion, a talk about Jennifer Chiaverini’s novel “Mrs. Lincoln’s Dressmaker .” 2 p.m., Spauldings Library, 5811 Old Silver Hill Rd., District Heights. Free. 301-817-3750.
Super fantastic Lego fun time, ages 6-12 can build creations using Legos. 4:30 p.m., Glenarden Library, 8724 Glenarden Pkwy., Glenarden. Free. 301-772-5477.
Bowie book talk, a librarian leads a discussion about Paula McLain’s novel “The Paris Wife .” 7:15 p.m., Bowie Library, 15210 Annapolis Rd. Free. 301-262-7000.
New Carrollton English conversation club, practice speaking English with others. 7:30 p.m., New Carrollton Library, 7414 Riverdale Rd. Free. 301-459-6900.
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