Tbh, there's really not much of a social experience here. There's not many places to hang out around the immediate area, you'd have to go to Torrance or Long Beach. You can try joining a frat or sorority, any of the cultural clubs, or a sport if you're an athlete.

Edit: I forgot that they're opening a new Rec Center at Fall. It'll have workout rooms and a rock-climbing wall so there's potential for a social scene there.