I wonder if she has a sense of humor. Considerations like that are important, guys, when one is devising a pick-up line.
Let me show you how it's done.
The first thing we note is that she is leaning against the wooden structure.
SO....here's what I would do.
I walk up to her and say, "Excuse me, Miss. I couldn't help but notice that you are leaning. I bet you must eat a lot of 'LEAN' cuisine!"