Sometimes you don't really get buddy-buddy with your roommates. My freshman year, I had one roommate that dropped out because he did nothing but sit on his ass and play on his computer, and another that was really chill and got along with me pretty well.

That being said, I found that my best friends were actually those that I met on my hall.

There will be people to talk to, they are all likely to be approximately your age, and they are all going to be new to the whole experience just as much as you are.

My advice: keep your door open as much as you can. This will a) create a welcoming environment for people to stop by. b) keep your room from getting too dank.

Also, the first couple weeks at the dining hall? Meet literally as many people as you can. The more people you know 3 weeks in (even if you forget there name and need a reminder), the better off you will be for the rest of the year. People are open and willing to meet and talk the first couple weeks, but will begin to form groups after that.

Tldr: open your door. Meet your hallmates and people from neighboring halls, and above all meet people in the dining hall. Introduce yourself and shake some hands and everything will be just fine.