In first year you kinda go around trying to talk to loads of people, well I didn't really but I hear that's what you're supposed to do. You meet people in your halls, and maybe you are lucky and become BFF with them. Or in a house, like me, with only three others you've never met before and you could be very lucky, like me, and they actually do become your BFF.
Getting to know people on your course is easy, you see them every day! And once you know a few people, they can introduce you to more, you can introduce different friends, and soon you have a nice lil network of peeps you can call friends. I started out with only a few friends on my course but met a couple of the guys I'm close with now at a Halloween party. My housemates and I thought it'd be a cracking idea to make Nicholas Cage masks and all go as Nick Cage to the Halloween party. Cheapest, easiest Halloween costume ever. I made friends with a guy by army crawling down the road with him towards the beach, trying not to spill a mug of vodka. Falling in the sea and walking home dripping wet also made a great impression. Being a fool is apparently a good way to make other foolish friends so you end up with friends just as weird as you! Unless you're not actually a fool and a weirdo, then this doesn't work and I suggest you go somewhere else for advice 'cos I can't help you.
There is a point to me telling ya'll this I promise. It's basically to say, you never know who will be your new BFF or where you'll meet someone. You don't have to be prepared for it 'cos it'll just happen naturally. Two of my closest friends I don't remember meeting them or starting to get to know them, they were just suddenly always there! You'll meet people everywhere, and if you don't feel like you fit in then you probably don't so don't even bother making an effort for those peeps.