Hello Heidi,
Sorry, but I don't think anyone here will answer your request for info. At least, I hope they won't. Not to be rude, but it's these kinds of threads that sometimes lead to Greeks getting portrayed in a negative light. We've had too many people posting with the same "I'm writing a paper" story to believe them anymore. If you're for real, then I apologize and I'm sorry that others have come before you and been dishonest. They've ruined it for people who really do want honest information.
I would suggest talking to students, Greek and Non-Greek, on your campus and doing face-to-face interviews with them to get the information that you desire. By doing that, they'll know you personally, and, most importantly, you'll know them. You'll have less chance of getting false information that way. Hope this helps!