Ahhhh, yes, Middle and High School years. (~1977-1983, once I started Kollege, trips to mall ended.)
Hanging out at the video arcade (I was a champion at Galaga and Tempest), rummaging through the records at Camelot Music (there was another local chain record store in Greenwood Park mall also, I disremember their name.) And generally, "crusin' around" looking for and at girls.
The movie theater (3 plex) was out in the corner of the parking lot, so all the problems associated with the mid-night movies (Rocky Horror, et al.) Pretty much stayed out in the parking lot and the theater.
I did collections work for Monkey Wards in the Yorktown Mall, but since I only got a 15 minute break, (and was pretty broke most of the time), I usually just grabbed a can of pop from the soda machine, and stared lovingly at the food in the snack machine in the break room before going back to work.