[Preston327]

Basically nothing I can say hasn't already been said except that it might help to ask them about their organization (basic stuff like history, what sort of stuff they do, traditions, etc) for two reasons. First, you want to get a feel for what sort of group they are and what they hold to be important. Second, in my experience my brothers love talking about our org, and it makes us feel like you're an intelligent person for inquiring.

One thing I will say is do keep an open mind. At a massive competitive SEC school like Florida you'll likely hear words like "top-tier," "middle-tier," etc thrown around a bit. This is mostly crap, and almost always relative to the individual's taste and opinions. Find the people you like and bugger what anyone else says about them; if you're with people you enjoy being around, you'll have fun regardless.