After the success of Offshoot Productions’ “Comedy! Improv! Ensemble!” workshop, the company is adding another improvisation session to its busy winter calendar. Open to adults and teens (14 and up), the workshop runs from 2 to 5 p.m today at the Roger Spencer Community Center, 145 Commerce Drive in Tyrone. The fee is $35. For additional information, registration forms and directions, call 770-631-2362 or send e-mail to offshoopr@aol.com.