Paying money to make friends and to be invited to parties is one way to spark up your social life. A large percentage of the UA student body is Greek, so you're not going to escape them—and for some, the "if you can't beat 'em, join 'em" motif certainly applies. You can see a frat "bro" or "sorority girl" almost every time you go to just about any class. They are very visible on campus, which many feel is one of the most unfortunate things about the UA. You can tell who they are because they usually have nice tans, huge muscles, and/or letters of the Greek alphabet embroidered on their shirts. Sometimes the nerdy girl next to you will surprise you when she turns to you and tells you she’s in a sorority and that you’re invited to a party, but by and large, the Greek community at the UA is rather homogeneous.
There are intelligent and interesting sorority girls and fraternity guys here, but they're few and far between. The ditzy stereotype crops up much more often. At such times, it is appropriate—and even mandatory—to point your non-Greek, independent finger at them and laugh annoyingly loud. However, it’s easy to tell that service-based Greeks work really hard to selflessly serve the community, so it's not all bad. People in Greek life are generally very involved within the scene and tend to stick very close together, which is good if you're in a frat or sorority and not so good if you're not. Like at many large universities, Greek life is a mixed bag and looks to remain that way for the foreseeable future.