Well that depends are you dating if not it could mean he's into you . If not it could just mean he's curious about why your looking at you.
he obviosly likes you
It doesn't look weird at all, but some people may not be used to seeing it.
It depends on the backpack your talking about.
There was the weird guy, the short guy and the pimp guy. Well the weird guy perved on people, the short guy gave bjs and the pimp guy would look after the prostitutes
Sometimes you really can't tell. I mean he can be a nice guy that likes to look good. If your not sure get to know him and look for signs that shows he is.
he might be gay, or he thinks you look weird or something
I think it means weird boy/male/guy.
That means you are weird!!!
He might be a vampire or he's just weird.
He's jealous
he probably likes you!
Aha! If you are weird, try to be funny. I mean, what kind of Guy doesn't like a funny girl?