C'mon, don't be shy! Cosmo won't hurt you! And if he likes you, he might dance for you. Or sing you a song to cheer you up.
But if he doesn't like you, he'll cheerfully make sarcastic remarks about you to your co-workers. Then again, he'd probably do that even if he did like you, so don't take it personally.
As you can tell, there's not much going on right now. I think I'll stop this silliness and go read a book. Yeah, that sounds like a good idea.