Boys will be able to help you the most on this.
But coming from experience, the number one thing i do to get boys to notice me is act confident and compliment them. Guys dont get enough compliments. And they may not admit it, but a real compliment will do the trick.
Ive talked to my guys friends and they say when a girl compliments them, it is a big thing. And not just how thy look, but like how they are.
Compliments will get you a long way.