a question

I'm possibly transferring to Butler in the spring and I'd like to go through sorority recruitment. I have a concern about getting to know people in the chapters - are the chapters here just glorified drinking clubs where every girl goes out Thursday, Friday, and Saturday, or will there be people who don't go out all the time? I have absolutely no problem with drinking; it's just that I don't want to feel left out if I don't partake, and I want to be able to get to know people without having to be drunk to talk to them. I really appreciate any responses and would definitely be interested in any of the chapters here; they all seem great!