What are friends like? There are only five people in our dormitory. I'm alone. What should I do if I feel uncomfortable? I don't know how to blend in with them.

Maybe you are introverted and not good at dealing with interpersonal relationships. Never mind, roommates, they definitely want to be friends with you, but they are not sure about your personality. I think you can organize a dormitory dinner together, or go somewhere in the dormitory to play together. Slowly blend in with them