The trick for me is that I have Integrity.
If i see a girl that i find attractive, I first try to watch her if she seems like a cool person. Maybe get eye contact and start to smile againt each other.
Almost the only lines i use are:I think you are quite cute/very pretty/quite sexy depending on type of girl, and then mostly I start to walk away from her, but then,
almost everytime she quickly replies by saying the same about me. If she doesn