Why would a guy smirk at a girl?

[Anonymous]

At the end of class these 4 guys would look In my direction and smirk at me. I notice because they've don't it more than once. What does this mean? Why are they smirking at me!

[theguyisback]

...perhaps they all discuss together that they are attracted to you? That's the first thing that comes to my mind. I've talked to other guys in a group about a girl that is cute, and others would agree, then if she looks out direction, we would all have the "oh, she looked over here while we were talking about her" look on our faces, and would all end up giving the same confident "we weren't talking about you" smirk lol

[Evilpumpkinman]

they want to sacrifice your soul to the dark underlord

[Anonymous]

Define "Smirk" Please and Thanks!