OK, a lot of incorrect responses so far. I'm a current student so let me clear this up.
East and South Stadium student sections are both GA. You won't be able to sit in East because you need a wristband, which you only get when you show your ticket. You should be able to maneuver into South, but you'll need to get there at least 2 or 2.5 hours early to get a decent seat since it is GA. Many people wait for 5 or 6 hours before every game to get good seats in South.
Also, I think you will be treated much nicer not sitting in the student section. Unfortunately, some of us are jerks.