The 86 Rules of Boozing - Modern Drunkard Magazine Online

"1. If you owe someone money, always pay them back in a bar. Preferably during happy hour.

2. Always toast before doing a shot.

3. Whoever buys the shot gets the first chance to offer a toast.

4. Change your toast at least once a month.

5. Buying someone a drink is five times better than a handshake."
(81 more inebriated reasons at the link)