Most Helpful Girl
Don't be too desperate. Be alright with being alone. Like yourself, but not too much or you would be narcissistic. Try to show passion in something. Be nice. BE gentle.
DON'T be rude to anybody. Be nice. Be positive. Help those who need help, but also don't give all you have.
and most importantly, BE CLEAR OF YOUR INTENTIONS. Don't play too much mind games. Smile at the girl. Joke with her. It is ok if you blush around her. But don't cling too much, and don't do everything for her. be genuinely nice.
Most Helpful Guy
I am going to give you the same advise I gave to a friend of mine. So this may not apply to you at all.
I advise you to look at your life and look at what girls do look at you. I am pretty sure they are there. Maybe you don't find them interesting but still look at them. Ask yourself why they are interested in you and the girls you want are not.
It could be that you treat them more relaxed. With them you are not trying to be that interesting guy. You are just being yourself and therefore interesting.
So maybe that is what's going on here.