It's fake, but I do something similar. You don't just start out by asking if she thinks you're attractive though, that's awkward approval-seeking crap. But if you ask it like, "I think I like your expression. Like someone I wanna see if there's chemistry with. You think I'm attractive? Hmmm." and in some cases you can go for the kiss here, otherwise number. But if she answers with "You're alright," or something, then I'll say, "Well, I'm not working with that then. But nice meeting you." and turn to leave, sometimes this prompts more enthusiasm, if not I won't waste my time.
