Maclay Burt offers tips on improving photographs. Santa Ana Room at Palm Court, Santa Ana. Saturday. 11 a.m.-noon. Free. (714) 835-0835.
Be a cowboy at San Juan Roundup '99. Cecil Martinez Arena, Rancho Mission Viejo. Saturday. 10 a.m.-midnight. $12-$28. (949) 588-3312.
Sign up for open-gym volleyball. Irvine Sport, Building F. The group meets every Friday and Saturday at 7 p.m. $5. (949) 454-1250.
Pamela Barris will sign "Dream Sleeps" at 7 p.m. Monday at Barnes & Noble in Metro Pointe, 901 South Coast Drive, Costa Mesa. (714) 444-0226.
Health-related events and support groups are listed in Monday's Health section. Lectures, social events and volunteer opportunities appear in this section on Tuesday. Books and author events run in this section on Wednesday. Garden events and clubs are in Saturday's Home Design.