Let's say you have the dice. The person to your right attempts to guess what you will roll. If they succeed you must CHUG the big cup (full beer). If they get it wrong they simply take a sip of their beer. After you have rolled and they have guessed, it is their turn to roll and the person to their right must guess. This continues in a circle. It gets fairly wild, and it isn't unlikely for someone to get nailed 3 or 4 times in a row. Oh and also, when someone guesses right everyone must chant "Drink that shit" while the roller chugs.