This guy works at the grocery story I shop at and is close to my age (I'm 17). He'll smile at me, but not when I'm looking ( I'll look up and see him smiling). When we make eye contact it's really brief and either I look away (reason below) or he'll look away and smirk. When I'm looking at him he'll avoid looking at me. He is really outgoing with everyone else, why is he so wierd with me? I think he's really cute, but try really hard not to show it, because I'm worried he wont like me back... so I don't smile at him or anything. Does he know I like him and think it's funny or something?