How come my guy friend keeps staring at me?
So I recently met a dude who is 5 years older, he's cool and all. We talk a lot, he knows that I'm taken and he and his girl are having problems. The other day when we hung out my my other friend, who is a girl. I noticed that he kept staring at me, well it's like more of the feeling where you know that someone is staring at you. He laughs at everything I say, even though I don't think it's funny. He smiles at me a lot, and apparently stares at me a lot too, why?