What does it mean when a guy is starin at a girl and he bites his bottom lip slowly??
Well I'm not sure about anyone else but I bite my bottom lip when I'm nervous. Maybe he's afraid to talk to you and would like to ask you out.
he probably wants to have sth special with the girl! lol
was he like gazing if soo, he wants to ffuc* you
Thinking about dirty things,Or he was in pain.