Thursday 19 WATERFORD COTILLION, call to register for six-week course in January and February. One class is for fourth- to sixth-graders, another for sixth- to eighth-graders. Program focuses on social etiquette, including first impressions, table manners, communication skills and confidence building. The cotillion is directed by Jon D. Williams Cotillions, established in 1949 to instruct young people in the art of dance and social etiquette. $160. 540-882-9090.

SNOWFLAKE PAGEANT, call to register for pageant Jan. 11 at Harper Park Middle School. 703-771-5913.

PHILADELPHIA FLOWER SHOW, 55 and older, call to register for three-day, two-night trip March 6-8. Sponsored by Loudoun County Senior Center and its advisory board. Seats limited. Members, $230; nonmembers, $250. Includes transportation, double occupancy at Ramada Inn with continental breakfasts, ticket to flower show, one dinner, two shows, Amish area tour with guide and two country-style lunches. 703-430-2397.

FIRST NIGHT LEESBURG 2002 BUTTONS, admission tickets to any or all of more than 100 performances with purchase of commemorative button to be worn that evening. Admission buttons may be purchased at Loudoun Visitor Center, Bluemont Concert Series, Leesburg Pharmacy, Loudoun Museum and Melodee Music in Leesburg and Sterling. Adults, $8; ages 3-12, $3; 2 and younger, free. 703-777-6306.

WINTER BREAK CAMP, grades K-5, call to register for camp 8 a.m.-4 p.m. Dec. 23, 26-27, 30-31, Loudoun Valley Community Center, 320 W. School St., Purcellville. Activities include jammin gym, bowling, movies, ice skating and Planet Splash-N-Play. Bring bag lunch and drinks in non-glass container. One day drop-in allowed if space permits. $150, per child for five days. 540-338-4122.

SOCIAL/BALLROOM DANCE, call to register for classes beginning Jan. 10. Big band era, level 1, 7-8 p.m.; swing workshop, 8 p.m., Douglass Community Center, 407 E. Market St., Leesburg. $30, four sessions. 703-406-7894.

LOUDOUN ACADEMY OF THE ARTS, call to register for classes beginning Jan. 6. Portrait painting, black-and-white darkroom basics and tile making new for adults. New classes for children include puppetry and art classes for home-schoolers. Repeat classes for adults and children featuring drawing, sculpture, watercolor, oil, acrylics, calligraphy and landscape painting, 222 S. King St., Leesburg. 703-777-8043.

LIBRARY TOUR NIGHT, library staff offers one-hour tours, 6-8 p.m. today, Sterling Library, 120 Enterprise St. Learn about different electronic resources. Sponsored by Loudoun Library Foundation, Inc. Free. 703-430-9500.

LOUDOUN WALKING AND VOLKSSPORT CLUB, open house, 7:30-8:30 p.m. today, Rust Library, 380 Old Waterford Rd., Leesburg. Learn about the club, plans for 2003, places to walk in the county, benefits of walking and meet fellow walkers. Refreshments. Free. 703-737-2175.

ROAD RUNNERS, trail runs, 6:30 p.m. Thursdays, Loudoun County High School, 415 Dry Mill Rd., Leesburg. Bring water. 703-771-6927.

BINGO, benefits local charities, 7:30 p.m., Sterling Ruritan Club, 183 Ruritan Rd. 703-444-6039.

"MOM'S MORNING OUT," enjoy a morning with your child or use the time to run errands. 10:30 a.m.-noon, Douglass Community Center, 407 E. Market St., Leesburg. $35 for five sessions. Registration required. 703-771-5913.

SENIOR CENTER POKER, 55 and older, 1:30-4 p.m. Tuesdays and Thursdays, Loudoun Senior Center, 21060 Whitfield Pl., Sterling. Center members, free; nonmembers, $1. 703-430-2397.

ROUND HILL SMOKE-FREE BINGO, sponsored by Round Hill Volunteer Fire Department, doors open at 5 p.m., early-bird games 6:45 p.m., at the department, Route 719 North. Accessible to disabled.

Friday 20 NATURE BUDDIES, "Fury Friends," 2-year-olds, 10-10:30 a.m., Claude Moore Park, 21544 Cascades Pkwy., Sterling. Introduction to nature for toddlers and adults. No siblings. $3. Preregister. 703-444-1275.

SHOP AT ZANY BRAINY, proceeds of sales on Dec. 20 go toward a new running track at Sully Elementary. Tell cashier that you are Shopping for Sully so the school receives credit. Track partially funded by a Loudoun County Make-It-Happen Grant, a contribution from Lower Loudoun Girls Softball League and support by local businesses. 703-444-9484.

KNITTING/CROCHETING, county-sponsored, with Judy Hayes. Make items for families at the homeless shelter, Northern Virginia Ronald McDonald House, Loudoun Hospital Center and long-term care unit at Loudoun Hospital, 10 a.m.-noon Fridays, Loudoun County Senior Center, 21060 Whitfield Pl., Sterling. Group seeks donations of crochet hooks, sizes F through J, and four-ply acrylic yarn. 703-430-2397.

BODY SCULPTING, 10-11 a.m. Fridays, Sterling Community Center, 120 Enterprise St. Care available for ages 2-5 at a minimal charge. Classes, $25 a month. To register, 703-430-9480.

DROP-IN OPEN GYM FOR HOME-SCHOOLERS, ages 10-17, noon-2 p.m. Fridays, Lovettsville Community Center, 57 E. Broad Way. $1. 540-822-5284. First-graders and older, noon to 2 p.m. Tuesdays.

DROP-IN BASKETBALL, elementary students, 3-5:30 p.m. Fridays, Douglass Community Center, 407 E. Market St., Leesburg. $1. 703-771-5913. Women, 8:30-10 p.m. Fridays, Sterling Community Center, 120 Enterprise St. $2. 703-430-9480. Also 5-7 p.m. Fridays, Douglass Community Center, 407 E. Market St., Leesburg. $2. 703-771-5913.

Saturday 21 LOUDOUN AMATEUR RADIO, 8:30 a.m., Holy Trinity Lutheran Church, 607 W. Market St., Leesburg. Early birds meet at IHOP, next to Wal-Mart, for breakfast at 7:30 a.m. 540-338-2584 or www.k4lrg.org.

DATABASE INSTRUCTION, "Search and Find: Learn Basic Catalog Use," 2 p.m., Middleburg Library, 101 Reed St. 540-687-5730.

MIDDLEBURG STORY TIME, ages 4-6, each Saturday, 10 a.m., Middleburg Library, 101 Reed St. 540-687-5730.

ROAD RUNNERS, "Ball's Bluff Town Loops," meet at 8 a.m. For location, call 703-737-6642 or www.loudounroadrunners.org

LUCKETTS RURITAN TRASH, RECYCLING, 8 a.m.-noon Saturdays, Lucketts Elementary School, 14550 James Monroe Hwy. Donation of $3 per household requested. 703-777-8544.

HILLSBORO RURITAN TRASH DROP-OFF, to benefit schools and rescue squads, 8-11 a.m. Saturdays, Loudoun Valley High School, 340 N. Maple Ave., Purcellville. $1 per sealed bag, 30-gallon maximum. 540-668-6749.

Sunday 22 ROAD RUNNERS, "Morven Park Run," meet at 8 a.m., Rust Library, 380 Old Waterford Rd., Leesburg. 703-779-0078 or www.loudounroadrunners.org.

ONE-ON-ONE INTERNET, classes, 7-8:30 p.m. Sundays and 2-3 p.m. Tuesdays, Eastern Loudoun Regional Library, 21030 Whitfield Pl., Sterling; 7-9 p.m. Mondays and 2-4 p.m. Tuesdays, Rust Library, 380 Old Waterford Rd., Leesburg; call for times and dates at Purcellville Library, 220 E. Main St. and Sterling Library, 120 Enterprise St. Free.

Monday 23

SKETCH CLUB, still-life workshop, teaching videos, 10 a.m.-2 p.m., first and third Mondays, bring bag lunch, Round Hill Center, 20 High St. 540-338-2103.

SENIOR CENTER DUPLICATE BRIDGE, 55 and older, sanctioned game, 11 a.m.-2:30 p.m. Mondays; 1-4 p.m. Thursdays, Loudoun Senior Center, 21060 Whitfield Pl., Sterling. Center members, free; nonmembers, $1. 703-430-2397.

RECYCLING DROP-OFF, newspapers, glass bottles and jars, aluminum and steel food and beverage cans, plastic bottles, cardboard and paperboard. 8 a.m.-dusk Monday-Friday; 9 a.m.-4 p.m. Saturday-Sunday. Park View High School, 400 W. Laurel Ave., Sterling. 703-771-5318.

FEELIN' GOOD EXERCISE, county-sponsored, for senior adults, low-impact exercise, 8-8:45 a.m. Monday, Wednesday, Friday, Loudoun Valley Community Center, 320 W. School St., Purcellville. $36, 12 sessions. 540-338-4122.

DANCE AND TONE, all ages, improve endurance and strength with 30 minutes of choreographed exercise and 30 minutes of floor work. Sponsored by Loudoun County YMCA. 7-8 p.m. Mondays and Thursdays, Mount Pleasant United Methodist Church, 13266 Taylorstown Rd., Taylorstown; 9:30-10:30 a.m. Mondays, Wednesdays, Fridays, Hillsboro's Old Stone School, Route 9. Child care available. Fees based on number of classes signed up for each week. 703-777-9622.

FOREVER FIT EXERCISE, 55 and older, sponsored by Loudoun County YMCA and Loudoun Healthcare Inc. Walking, marching, strengthening exercises, and stretching and relaxation. 9-10 a.m. Mondays and Wednesdays, Leesburg Presbyterian Church, 207 W. Market St. $2. 703-777-9622.

-- Compiled by Sandy Mauck

Send items to Sandy Mauck, Loudoun Calendar, The Washington Post, Suite 100-A, 305 Harrison St. SE, Leesburg, Va. 20175, or by fax to 703-777-8437. They should arrive 14 days before the Thursday publication date. Include dates, times, exact address, cost and a publishable phone number. For more information, call 703-771-4102.