My best advice is simply practice makes perfect. I remember I used to get tipsy, giggly and annoying after just a couple of beers. Boy, those were the days. I also try to drink a glass of water with every alcoholic beverage. Am I in the bathroom constantly? Yes, but no hangovers! And I fully expect to hear more about that story involving sex with a minor. Do 30 year olds drink with high schoolers for any other reason?