Thanks for the reply!

I guess grabbing a guy I barely know and kissing him might scare him...
the thing is, I'm too shy, that's why I've never approached him or talked to him, or even been able to make eye contact. And since he'll probably be leaving soon, I thought the easiest way would be to kiss him....you see, I think I would be more nervous asking him out because that means I have to talk...to a guy I haven't talked to for a year. It would be so random...and embarassing. Thing is, I probably don't have the courage to kiss him anyways....