Does that really work?

Got a bit of a problem. I can not for the life of me find get a girl to go out with me. I feel like I put some effort into letting a girl know I'm interested but I can never get them to be interested in me. I'm begining to wonder if theres something I'm doing to repell women away or if there's some secret, unforseen code that I need to know to have a girl return the interest. In other words, how do I get a girl's number without appearing overbearing, desperate, or creepy? Is there any good way? Help someone, it's been forever since I've had a date and I know I could make some lucky lady very happy.