Her: "Can you buy me a drink?"
you :" is that the best pick up line you can come up with?, I'm not that easy"
or
you:" you are trying to pick me up, shouldn't YOU buy me a drink?"
or
you: " I know what you are doing, you are trying to get me drunk and take advantage of me!! I'm not "That" easy "
or
you: "order two drink and right
before the bartender brings the beer to you, just said "I saw a friend over there, I'll be right back" and walk away and talk to someone and never come back, she will either have to wait for you to return or have to pay for both because the bartender is waiting, and we all know that would be rude if she don't pay, don't we
when she walk over with
your beer just take it as if nothing had happen and said thanks