You better act homosexual, multi-sexual, transgendered or demonstrate some such other form of confusion or psychosis. Otherwise they'll catch on to you right away. And you don't want to be caught "normal" on campus.
At least carry some pot around with you, if all else fails you'll be accepted with that.
Don't forget the dreadloks and a wooly beard for hiding nuts, berries and granolas to feed to fuzzy woodland creatures...