rush week

Formal recruitment begins at the start of the Fall semester. Fraternities usually table the first few weeks through rush week. This is your opportunity to talk to them and get information. Don't be shy, if you see people wearing letters around campus, just talk to them about joining and they'll be happy to tell you about their upcoming events.

whatever you do... don't go sigma pi unless you like being in the friendzone

every Fraternity if different not everyone belong in just one fraternity they all have their strongest and their weaknesses.
Sigma pi's are GREAT they are real down to earth guys with a wide variety of guys with i think its great because you'll always have somewhere to fit in they have been climbing up to the top.
Kappa sigma have a little too much ego As a whole but they are really great guys in there too.
Lamba chi has are your usual Country boys and are quite the gentleman.
ATO is usually more military base, they have come along way and have always have great recruits.
Pi kappa Phi's are more on a business end and they are not the hottest fraternity but they are sweethearts.
Phi Delta Theta is new to campus so they are still creating their own name and identity.
Fraternities are different than sororities so really get to know as many active members as possible and it will make you decision a whole lot more clear.
Good luck and GO GREEK!