Places someone might find the character? Things they might be doing? The club, the park, the shelter, the recreation center, the pizza parlor, the convenience store. She likes to drink a little (or a lot depending on her mood), eat greasy foods, work out a little, and watch other people work out.
Is the character in any IC group, including the school? Details! Nope. But she's hoping to start the Fight Club with Venom (and her as the "silent" partner).
What kind of person does the character get along with? People who she thinks aren't goody-goody. She can put up with people who seem geniunely nice, but Ava really dislikes overt, in your face naivete and innocence. It gives her the urge to break the person. She much prefers people who look like they understand the darker things in life.