text: Don't worry, it will come more naturally than you think.  Often times there is a freshman orientation specifically built for you to get to know other people, group activities etc.  Join a few clubs, and go to the group gathering and campus events, get to know your roomies and people on your floor (assuming you are in a dorm) and you will do just fine.  You could also consider joining a frat/sorority if that is your kind of thing... but then it's kind of like "paying for your friends" so that's up to you.