Hi pilot, I was joking a bit about the butt pinching but I think you all got what I meant. She seems to be open and flirting a little. Maybe you could reciprocate in a playful way?
There is a huge difference between winking and grinning at someone and looking at them with sad, in love puppy dog eyes.
Maybe a little harmless flirting and friendliness would be a good experiment soon. But maybe not yet. That's up to you.