You saw genya alone and decided to try and talk to him, to possibly befriend this hot headed boy and aggressive. But from what other demon slayers you didn't expect him to be this..shy?

Genya stood there almost stiff as you spoke to him, he was listening to you but wasn't exactly paying attention. He was red-faced and couldn't bring himself to talk. He was utterly useless when it came to any women talking directly towards him. Not as much as being around him “Uh..um..ah-..”