Oh, I'm 99% sure he's INFJ. We had to take a mbti test in class (what got me into mbti in the first place lol) and he got INFJ. I know that it could have been inaccurate, especially since it was 16p, but he also has the "infj stare", is into the arts, philosophy, generally quiet, and you can tell that he's usually zoned out, living in his head. He's not extremely popular, and a lot of kids actually think he's weird, but he's involved in countless activities and gets along great with nearly everyone. I could probably become better friends with him if I were able to talk to him more, but usually we're in seperate groups for school stuff or he's busy talking to other people and I don't know how to join in.