from experience, don't see him and don't talk to him....it's this wonderful i discovered called closure...it does wonders!
But at the same time, it isn't going to be easy, when someone's been in your life for a year or so you're going to have all your recent memories with them in it.
Don't bother getting out with other guys already, learn to live with yourself, go out with the girls or just some friends and just put effort into all the other parts of your life.