My roommate is always trying to tag along with me and my friends. I'm cool with them coming sometimes since I know he doesn't have a lot of friends, but I really want to spend time with my friends without him being there. Is there any way I can let him know without being rude?
If you want to be discreet, you can make plans and go to those plans without your roommate. Honestly though, I think your best bet would be to spend more time alone with your roommate and become better friends with him. You're going to be living together for a while, so you may as well be friends. Or perhaps you can encourage him to make more friends of his own to hang out with. If there is any specific issue that you or your friends have with him tagging along, you should bring it up with him and discuss it directly. Good luck!
When there's a will, there's a way. I understand the sticky situation you're in. It is sometimes difficult determining the boundary and the line to cross when it comes with interactions with roommates. I'd suggest you to find some time when you and your roommate are both free to have a little chat. Go for a quick food run to lighten the mood or just find a private space and get right to it. Be honest, but not rude. Express your feelings and concerns with your roommates. Let him know that although you do enjoy his company from time to time, you'd like some time alone to spend with your friends. Let him know that it is okay for him to tag along sometimes, but sometimes, you just want to hang out with your friends by yourself and this has nothing to do with him as a person. Make it clear to your roommate that he has done nothing wrong and that you simply just want your time with your friend group. I would also help your roommate find something else to do in that case that you do prefer to have time with your friends (by yourself). See if he has any hobbies and help him take that step towards mingling with others :) A little help goes a long way and maybe your roommate just needs a little boost to get him going.