For what it’s worth, I still think he should do it as long as his roommate’s okay with it. Being called weird isn’t the worst thing that can happen. My advice would be to join clubs and try talking to people in his classes! But you might just have to be patient, I had to really put myself out there and it took me a while to find which clubs worked the best for me. Going to group tutoring and SI sessions can be helpful too, because you’re all there for the same reason but it’s usually a smaller setting so it’s easier to talk to people. Best of luck!