A lot of folks drink. But not everybody. Shared interests. That is the key. Find people who like to do the non-drinking activities you do, or share the same hobbies.
Not all students drink. You want to find the serious ones? Hang out at the library. Maybe you'll see a classmate. Strike up a conversation. I know it isn't easy for men to make male friends. It's not like you can knock on their door and ask them if they want to play, like you could when you were 10. But male bonding doesn't have to occur over alcohol.