Keep your fluids up - Sneak in a flask. I'm seen with a jack and coke at all times. Keep more in the car and make several trips, it'll warm up in the icy coke. Everyone's alcohol kicks in around the 5th inning, so be sure to get to the game early. They'll sit down with your group and find out where everyone is supposed to be.
Beer men are good men.
Nevertheless, give a loud ovation when they get into the game. Watch them cry. Tim Hummel of the White Sox - if they last that long. Look out for the women - Chances are they're worried about their apperance and not the game, resulting in getting hit by a foul ball. I've witnessed everything from them taking one in the head to falling down the stairs while carrying an armful of Cokes just because they wanted to wear certain sandals.