Drink a LOT.

When you think you've drank enough, drink a lot more.

Never sit down. Ever. Don't just stand during the exciting parts. Make sure your pants never touch your seat.

Name yourself the coach advisor and constantly yell helpful tips for the team like, "get a touchdown!" Do this on offense, defense, special teams, or during the halftime show.

Taunt anyone that happens to be a fan of the other team, especially if there's no sort of rivalry whatsoever.

If anyone says anything at all about your behavior, punch them in the face.

Make a large sign and hold it up the whole time so nobody behind you could have any chance of seeing the game.

Make wild hand gestures while holding your drink so you spill it all over the people around you. That way everyone can go home smelling like a pub's dumpster.

Be sure to curse like an insane person after every single play. We're talking The Departed director's cut over here.

Bonus points if there are kids around you while you're yelling and cursing.

Stay on your dumb, stupid phone the whole time. Then, when you hear cheering, jump up and ask what happened. Your friends will love that.