Is he just trying to be friendly?
He is a guy in my school ( a year ahead of me) and we met previously at a party and we chatted for a bit. Now when’re he sees me at school he always says hi and he tried to talk to me once about school. Yesterday, I was at the library reading and when I looked up I noticed he was looking at me, so he waved and smiled. Is he trying to be friend or is he interested?