I came up with this routine, but I don't know if it will work or not, nor do I know if it's been done before.

It's basically a push-pull-type routine, followed by making the girl qualify her self to you... well.. here it is... let me know what you guys think!
I took some of this from Mystery Method and Styles.

Girl (a girl who I already have rapport with from previous days) smiles at me.
Me: You have a beautiful smile.
Girl: Thanks
Me: yeah, too bad your personality sucks...
Girl: No it doesn't (or) how does it suck?
Me: well, how does it not suck? okay... tell me... how would you describe yourself in 3 words that would make me want to get to know you better instead of making me wanna run away from you.

This makes the girl try to qualify herself to me, making me the prize.

I plan to test this out at school tomorrow in class.
What should I change?