You could meet new people. Drink a few beers. Go out a few times. Take a mini vacation. Eat a crap load of food. Try to move on and meet someone new. Occupy yourself with school. Or work. Not talk to you. Try not to think of you. Hang with friends..
But at the end of the day, you still got this big void. The void that was left behind when we went our separate ways, the one that only you could fill.