I've always said that if a girl came up to me and delivered a cheesy chat-up line, I would instantly fall in love with her, providing she was aware of how cheesy it was and was doing it tongue-in-cheek.
I've never used a line before, but if I were to chat-up say, a barmaid, I would maybe ask something like this:
Me: Do you serve cocktails here?
Her: Yes
Me: Do you know how to make love?
Her: I beg your pardon?
Me: It's this new cocktail that everyone's talking about, called "love"
Her: What are the ingredients?
Me: 50ml vodka, 100ml Bailey's, a dash of cranberry juice and half a pint of your phone number
SMOOTH
