cocky, slightly arrogant, charming, reckless, handsome, charismatic. 

you get really nervous around dean

he's quite cold and stoic towards most people. he's especially very grumpy, but if he allows himself to get close to you, he's nice and funny once you get to know him. He has dark brown hair and brown eyes and glasses. He's a natural leader and when it comes to... certain things like, making out and stuff like that he's always dominant.