Proctor,
Support all the previous posts. As a veteran of two university gliding clubs I would certainly recommend investigating the opportunity when you arrive. Kevmusic is right, gliding is very time consuming but as a time rich/cash poor student that should work very well.
Glider pilots are a sociable crowd - something to do with all the help required for launching - so the social scene is usually pretty good. But,
gliding clubs (like other groups) can be somewhat cliquey so my advice is to persevere and to show willing. To a typical gliding club member there is nothing worse than a PPL holder pitching up for a flight, comparing gliders to powerflying (perhaps unfavourably) and making no attempt to join in with the ground chores - retrieving, log keeping, helping with launches, etc. Same goes for tugging. Tugging is a skilled (and somewhat dangerous) occupation and requires a good knowledge of gliding operations and soaring conditions. Look, Listen and Learn before raising the matter with the tugmaster.
Most clubs have an SLMG so you can keep your SEP hours up.
Have fun
"There was I in a ten knot thermal, everything off the clock but the maker's name and even that was in Polish"