A spark-flying exchange about choreography and improvisation between LACDC director Kate Hutter and company member Kevin Williamson provided the impetus for this exploration of the many complicated nuances of friendship. Co-directed by Hutter and Williamson, Pinky Swear challenges the dancers to segue from set choreography to extended sections of improvisation, drawing parallels between what is involved in building and maintaining trust in personal relationships and how dancers must trust each other in performance. The trusting LACDC dancers include Michael Crotty, Jamila Glass, Natalie Hurter, Nicol Mason and Tiffany Sweat. LACDC is likely to attract new friends with “pay what you can” tickets to its Thursday shows and a post-performance Q&A. Diavolo Dance Space, Brewery Arts Complex, 616 N. Moulton Ave., dwntwn.; Thurs.-Fri. 8 p.m., Sat. 3 & 8 p.m., Sun. 5 p.m.; thru Oct. 28; $20-$25, $15 students; (323) 225-4242 or www.brownpapertickets.com.