A sample lesson in lip reading for the hard of hearing will be given 11 a.m. Tuesday at Sleepy Hollow United Methodist Senior Center. The demonstration is free, but reservations are encouraged. The center is at 3330 Holloman Rd., Falls Church. Call 533-0880 or 893-1093.

Christmas trees in Falls Church and Vienna will be collected during special trash rounds. Falls Church residents should leave their trees at the curb between Tuesday and Jan. 9 for collection. For information, call 241-5080. Curbside pickup in Vienna will be Monday through Jan. 15. For information, call 255-6382.

A workshop on home remodeling and a seminar on wallpapering techniques will be sponsored by the Fairfax County Park Authority. Registration and $10 fee are due Monday for the remodeling workshop, to be held from 7 to 9 p.m. Jan. 11. Reservations and a $2 instruction fee are due Tuesday for a seminar on selecting, measuring and hanging wallpaper, to be held from 7 to 9 p.m. Jan. 13. The workshop and the seminar will take place at the Providence Recreation Center, 7525 Marc Dr., Falls Church. For details, call 698-1351.

Join naturalists on field trips sponsored by the Fairfax County Park Authority in January. Beginning Saturday, free nature walks will take place weekly from 11 to 11:45 a.m., from Hidden Oaks Nature Center, 4030 Hummer Rd., Annandale. Call 941-1065 for details. Advance registration is required for two other field trips, one in search of bald eagles and another to observe waterfowl, to be held Jan. 9 and 10, respectively. Space is limited for the bald eagle field trip, which starts at Mason Neck State Park, off Rte. 1. Call 941-1065 for details. The waterfowl hike begins at Hidden Pond Nature Center, 8511 Greeley Blvd., Springfield, at 10 a.m. and will return there by 3 p.m. A registration fee of $10 is required. Call 451-9588.

Auditions are being held for the Vienna Theatre Company's production of "Fiddler on the Roof." Tryouts will take place Jan. 9 at Vienna Community Center, 120 Cherry St. SE. Call 255-6360 for an audition appointment.

Sign up by Jan. 8 to exercise your skis at Wintergreen Ski Resort on Jan. 28. Sponsored by Alexandria Department of Recreation, Parks and Cultural Activities, the day trip costs $34 for adults, $31 for students and $30 for youths 13 and younger. Fee covers lift tickets and bus transportation. Equipment rental fee is separate. For more details and to register, call 838-4343. Sign up in advance to learn about cross-country skiing at a workshop Jan. 10. The workshop will be held from 1 to 4 p.m. at Wakefield Recreation Center, 8100 Braddock Rd., Annandale. Admission is $4. Call 321-7082.

"Meals in Minutes" is the focus of three workshops offered in January at Wakefield Recreation Center, Annandale. Reservations are required by Saturday for the first workshop, "Salad Delights," scheduled for Jan. 12. Or, learn "Chinese Style" cooking on Jan. 13, 20 or 27 by reserving your seat one week before each class. Find out the "Basics of Chicken" on Jan. 21 by signing up now through Jan. 14. All three workshops take place from 7 to 9:30 p.m. at the center, 8100 Braddock Rd. Instruction fee for each is $8 and supplies cost an additional $8. Call 321-7082.