Computer instruction, learn basic terms and how to use a mouse and keyboard, and work with Windows. 9:30 a.m. Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free, registration required. 301-630-4900.
Berwyn Heights bird walk, hosted by the Prince George’s Audubon Society, habitats include open water, wetlands, forests and meadows, with sighting opportunities for woodland and field songbirds, waterfowl and raptors. 3 p.m., meet at the parking lot for the Luther Goldman Birding Trail, Lake Artemesia Natural Area, Berwyn Road and Ballew Avenue, Berwyn Heights. Free. 301-509-2212 or firstname.lastname@example.org.
Seat Pleasant farmers market, 4-7 p.m. Thursdays, through Oct. 3, 6001 Addison Road at Eads Street, Seat Pleasant. 301-324-2470 or www.pgparks.com.
Super fantastic Lego fun time!, for ages 6-12, have fun building unique creations. 4:30 p.m. Glenarden Library, 8724 Glenarden Pkwy., Glenarden. Free. 301-772-5477.
Crab feast, all-you-can-eat steamed crabs, hamburgers, French fries, hot dogs, corn-on-the-cob, coleslaw and drinks. Sponsored by the IAFF Local 1619 MDA Softball Tournament. 5-9 p.m., Watkins Regional Park, 301 Watkins Park Dr., Upper Marlboro. $35 in advance; $40 at the door. Rebecca Richardson at 410-937-6135 or email@example.com.
Dance classes, for age 16 and older, learn swing, contemporary and R&B dance moves. 6:30-8 p.m., North Forestville Community Center, 2311 Ritchie Rd., Forestville. $25; nonresidents of Prince George’s and Montgomery counties, $30. 301-350-8660.
Doggie dive-in, take a swim in the pool with your pooch. Dogs must be friendly, social and curbed before entering the pool. 4-6 p.m., Allentown Fitness & Splash Park, 7210 Allentown Rd., Fort Washington. $4, registration required. 301-449-5567.
First Free Friday, enjoy a 30-minute cruise aboard the Wm. B. Tennison, tour Drum Point lighthouse and museum, enjoy an outdoor concert by the Navy Cruisers. 5-8 p.m., Calvert Marine Museum, 14200 Solomons Island Rd., Solomons. Free. 410-326-2042.
Xtreme Teens program, for ages 10-17, break into groups of boys and girls and participate in team-building activities. 7-10 p.m., Vansville Community Center, 6813 Ammendale Rd., Beltsville. 301-937-6621.
Family campfire, for age 2 and older, roast marshmallows and other snacks outdoors. 7-8:30 p.m., Watkins Regional Park, 301 Watkins Park Dr., Upper Marlboro. $3, reservations required. 301-699-2456.
Kickball cook-out, for ages 13-17, play or watch staff vs. teens rematch. 7-10 p.m., Southern Regional Technology and Recreation Complex, 7007 Bock Rd., Fort Washington. Free. 301-749-4160.
Bowie bird walk, Prince George’s Audubon Society members lead a walk in the Fran Uhler Natural Area, waterproof footwear and binoculars suggested. 7:30 a.m., meet at the end of Lemons Bridge Road, next to the Bowie State University campus, 10300 Lemons Bridge Rd. Free. 410-765-6482 or firstname.lastname@example.org.
John Wilkes Booth escape route tours, a 12-hour narrated bus tour that follows the trail President Lincoln’s assassin took from Ford’s Theatre in the District to Port Royal, Va. 7:30 a.m.-7:30 p.m. Saturdays, through Sept. 28, Surratt House Museum, 9118 Brandywine Rd., Clinton. $85, reservations required. 301-868-1121.
Jug Bay bird walk, for age 12 and over, learn how to identify birds by sight and sound. 8-11 a.m., Jug Bay Wetlands Sanctuary, 1361 Wrighton Rd., Lothian. Free with paid admission: $5; seniors and age 17 and under, $3. Registration required. 410-741-9330.
Shop ’n’ sell event, for age 21 and older, gently used items for sale. 8 a.m.-1 p.m., Harmony Hall Regional Center, 10701 Livingston Rd., Fort Washington. Free. 301-203-6070.
St. Thomas Church farmers market, 8 a.m.-noon Saturdays, through Sept. 28, St. Thomas Church, 14300 St. Thomas Church Rd., Upper Marlboro. Jeff Colburn at 301-627-8469 or www.stthomascroom.org.
Montpelier farmers market, 9 a.m.-1 p.m. Saturdays, through Nov. 2., 1720 North Crain Highway (Rte. 301), Upper Marlboro. Shelby Watson at 410-320-0464.
Foreclosure prevention workshop, homeowners facing default and foreclosure can meet with housing counselors to identify available financial options and services. 10 a.m., Largo Kettering Library, 9601 Capital Lane, Largo. Free. 301-336-4044.
Live animal show, for age 2 and older, meet a turtle, snake, toad and other live animals. 10-11 a.m., Clearwater Nature Center, 11000 Thrift Rd., Clinton. $2, registration requested. 301-297-4575.
Intro to PowerPoint, learn how to use software to create slide-show presentations. 10:30 a.m. Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free, registration required. 301-630-4900.
Young Historians program, for ages 9-15, a hands-on history program to learn about the 19th century through field trips, demonstrations, book readings, debates and more. 11 a.m.-12:30 p.m. Battle of Bladensburg Visitors Center, 4601 Annapolis Rd., Bladensburg. 301-779-0371.
Greenbelt gardening class, how to start a vegetable garden. 11 a.m., Greenbelt Library, 11 Crescent Rd. Free. 301-345-5800.
Celebrating Afro Latino Culture, for ages 3-7, explore a variety of cultures through storytelling, arts and crafts, music, and dance. This program is held in conjunction with the Prince George’s African American Museum’s exhibit “Voices of the African Diaspora: The Afro-Latino Experience in Prince George’s County.” Noon-1:30 p.m., The Mall at Prince George’s, 3500 East West Hwy., Hyattsville. Free. 301-559-8844.
Crochet and knitting basics, for age 13 and older, bring your own materials. 1 p.m., Mount Rainier Library, 3409 Rhode Island Ave., Mount Rainier. Free. 301-864-8937.
Laurel chess club, for age 13 and older, learn to play or improve skills. 1:30 p.m., Laurel Library, 507 Seventh St. Free. 301-776-6790.
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. 301-868-9200.
Herbs to grow and cook, a lecture and cooking demonstration. 2 p.m., Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free. 301-630-4900.
DC GlassWorks open house, a family-friendly event with food, beer, glass-blowing demonstrations, and live performances. 4-8 p.m., DC Glassworks, 5346 46th St., Hyattsville. Free. 301-927-8271 or www.dcglassworks.com.
Back-to-school fashion show, learn how to jazz up a school uniform. 7-8:30 p.m., Potomac Landing Community Center, 12500 Fort Washington Rd., Fort Washington. $5. 301-292-9191.
Timeless Vision band, for age 21 and older, the D.C.-based soul band performs. 9 p.m.-1 a.m., Miss Motley’s Cafe, 9501 Crain Hwy., Bel Alton. $12, reservations welcome. 301-392-9794.
The Indian Head 100, a bicycle ride presented by Oxon Hill Bicycle and Trail Club. Routes of 16, 29, 45, 62 and 100 miles through Charles County. Registration is waived for active-duty military and emergency responders. Part of the proceeds go to emergency response units in Charles County. Registration, 7-9 a.m., Indian Head Village Green, Walter Thomas Rd. In advance, $30; day of race, $40. 301-567-0089 or www.ohbike.org.
Church welcome picnic, residents are invited to worship service followed by food, moon bounce and other children’s activities. Service begins at 10 a.m., University United Methodist Church, 3621 Campus Dr., College Park. 301-422-1400.
Sunday Arts Series, children’s entertainer Eric Knaus, aka The Great Zucchini. 2 p.m., Fairwood Community Park, 12390 Annapolis Rd., Bowie. Free. 301-446-3232.
“Pre-K to Prison Pipeline: Changing the Odds of Boys of Color,” a symposium with panel discussions and small-group forums to discuss and address educational and incarceration trends among boys of color and how to break the cycle in the community. Sponsored by the African American Studies Department. 10 a.m., University of Maryland, Cole Student Activities Building, College Park. Free. 301-405-1158 or www.aasd.umd.edu.
Redskins vs. Eagles kickoff, age 12 and older, come dressed in favorite team colors and watch the home team take on the Philadelphia Eagles on “Monday Night Football.” 6-9 p.m., Glassmanor Community Center, 1101 Marcy Ave., Oxon Hill. Free. 301-567-6033.
College Park game night, bring your favorite game or play one at the library. 7-9 p.m., College Park Community Library, 9704 Rhode Island Ave. Free. 301-817-3750.
E-reader program, learn how to download library e-books to a device. 7 p.m., Largo Kettering Library, 9601 Capital Lane, Largo. Free, registration required. 301-336-4044.
What Future for Maryland’s Salt Marsh Birds? Dave Curson, director of bird conservation in Maryland for the National Audubon Society, leads a presentation on threats to native bird species and how the Salt Marsh Conservation Initiative aims to protect habitats. 7:30 p.m., College Park Airport Annex, 1909 Corporal Frank Scott Drive, College Park. Free. 301-262-5148 or www.pgaudubon.org.
English speaking club, practice speaking English with people from diverse backgrounds. 7:30 p.m., Hyattsville Library, 6532 Adelphi Rd., Hyattsville. Free. 301-985-4690.
Laurel bird walk, for age 16 and older, a guided walk to search bird habitats; field guides and binoculars recommended. 8 a.m.-10:30 p.m., National Wildlife Visitor Center, 10901 Scarlet Tanager Loop, Laurel. Free, registration required. Donations welcome. 301-497-5887.
District Heights book discussion, a librarian talks about Bernice L. McFadden’s “Nowhere Is a Place.” 2 p.m., Spauldings Library, 5811 Old Silver Hill Rd., District Heights. Free. 301-817-3750.
Cheerleading workshop, for ages 6-12, an introductory class to learn basic cheerleading and tumbling techniques. 6:30-7:30 p.m., Indian Queen Recreation Center, 9551 Fort Foote Rd., Fort Washington. Free. 301-839-9597.
Oxon Hill crochet class, for teens and adults, learn basics. 6:30 p.m., Oxon Hill Library, 6200 Oxon Hill Rd. Free. 301-839-2400.
Bowie book talk, a librarian leads a discussion about Michael Shaara’s “Killer Angels: The Classic Novel of the Civil War.” 7:15 p.m., Bowie Library, 15210 Annapolis Rd. Free. 301-262-7000.
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