What does this guy want to say? Does he like me?

Ok so there is this guy that I sit next to in class right we are not friends but we exchange conversations , he would always ask me random questions out of nowhere and he would stare at me like I don't know maybe he is crazy but not in like a hateful way but I would always feel him staring , the issue is when class is over and we sometimes walk together to the next class I always see him trying to say something but he just ends up not saying anything and just shutting his mouth , and just does a slight smile like some psycho

What does this guy want to say? Does he like me?
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