This one is for the guys swooning over that special girl who never looks at them. If you are one of those kinds who can't work up the courage to impress a girl with words, there are other important things you may be good at. Looking daggers at her is probably not the best way to get the right attention. Take these instead.
The first thing any prospective girlfriend notices is your looks. However you may look, make sure you appear at the best you can be. Exercise regularly, work on your posture and groom your appearance. You need not be the most good looking guy around, but it sure helps to looks neat and attractive.
Secondly, keep busy (or appear busy). Don't let the girl know you want her. A man's confidence is one of the most attractive qualities to a girl. It is why all the bad boys get the good girls. So, have a life of your own and ensure she sees that. It won't take long to get noticed by her (and also her friends).
Importantly, find common hobbies that create opportunities to talk to her. Engage her in light, jovial conversation over common topics. As the conversations get naughtier, your connection will get spicier. It is necessary to strike the right conversation as without it, there is no relationship. Overall, be yourself.