If you don't care to place a bet on the Pass Line then you have the option to bet your money on the Don't Pass bar. This is also known as playing the dark side as this bet is the exact opposite of the Pass Line. You will place your bets on the section labeled the Don't Pass Bar on the table right beside the Pass Line section. If you look closely at this section will notice it also has an image of some dice showing two sixes. This is because if you roll a 12 then it's a tie. This is done to give the casino a slight edge.
If you place a bet on the Don't Pass Bar then the outcome of your bet will depend on the following.
If you're the shooter and you roll a 7 then you have to pass the shooter responsibility to the person on your left. This is because the shooter will always lose this right should they roll a 7.