personally I think the best way of flirting is starting with laughter, then after you get her laughing (not just to be nice but really luaghing) throw in "wow you have a beautiful smile". Then not only can she be comfortable with you for making her laugh but feel good about herself and how you view her too. I touch here and there is good to afterwards, like a touch of the hand,shoulder, face or a hug.
practice the perfect smile and looking into her eyes, that always makse me really shy, but defidently gives me goosebumps. Oh and something like brushing the hair out of her face, if she has bangs or a piece that falls in front. that's allways good
I wouldn't brush the hair out of her face unless you know her pretty well. what gives me goosebumps is when he smiles and looks into my eyes and just shows me he cares and respects me. or when he makes me laugh. oh light hugs are good too!
When you know the guy is geniunly interested in you