Set up the 6 shooter glasses like this:
1 2 3 4 5 6
Fill up every other glass(1,3,5) with beer. Roll the die, on a roll of 1, 3, or 5 the player drinks from the appropriate shooter. (a 1 being shooter #1,a 3 being shooter #3....etc...). After drinking, the player rolls again.
If the player rolls the number of another shooter containing beer, the player drinks again, and keeps doing so until they roll a number of an empty shooter glass. If this happens the player fills that glass with beer, then it is the other players turn to roll.
If a player happens to drink out of ALL 6 shooters in one turn, that player has to fill all the shooters, drink them all, fill shooters 1,3, and 5, Then roll again...
The game keeps going until one player admits death or passes out...