If you're looking to roll up on girls who are already half in the bag, wearing cleavage-y dresses and trying to forget they're miles away from walking down the aisle themselves, a wedding is your perfect chance. If you play your cards right, it should be like shooting fish in a barrel. But since that's a big should, the opportunity for things to go awry is heightened, so here's what you should definitely NOT do. Ever. Under any circumstances.