SHIRLEY -- For anyone who ever wanted to try acting but was afraid to ask, older teens and adults are invited to sign up for Introduction to Theater classes, Wednesday evenings, from 7 to 9, starting Jan. 23. Learn theater terminology, play theater games, do improv, get introduced to theater lighting controls, and produce a 30-minute play for family and friends on March 20. Everything will be held at the Ayer-Shirley Middle School auditorium, 1 Hospital Road. Tuition is $40. For details email director Meredith Marcinkewicz at