In order to get a girls attention you need to stand out from the mass. People judge by the looks and you have only seconds to demonstrate that you are a man of style. So, first and foremost you have to look at the way you dress:
Is your dress boring or is it interesting and unique? Of course, it does not make sense to dress like a gigolo, because you have to feel comfortable in your clothes.
It's quite helpful to ask your friends about your outfit (but please do not be offended if they are critical, criticism will help you much more than a simple "Yeah, you're the man!"). It's even better if you find some girls to ask. Simply tell them you want to change your style a bit girls love all kinds of fashion questions. You can also ask girls on the street how they like your outfit and where you can buy some cool stuff.
If you've read the book called "The Game" by the writer and pickup artist Neil Stauss (aka Style), where he describes the pickup community, you are familiar with the "Peacock Theory". If not, here is an enlightening extract:
"Peacock theory is the idea that in order to attract the most desirable female of the species, it's necessary to stand out in a flashy and colorful way. For humans … the equivalent of a flashy peacock tail is a shiny shirt, a garish Hat, and jewelry that lights up in the dark … "
That means you can get a girls attention and get her interested in you simply through the way you dress. You think wearing things like feather boas, cowboy hats or eye-catching jewelry is silly? Maybe it is. But think about this: How many times have you approached by someone on your outfit? Not that much? Never? Well, that's what this stuff is good for – it allows women (mostly shy women) to start a conversation with you. If you have a cool answer and can demonstrate higher value you will most likely get her number. At the same time you demonstrate a high self-confidence wearing this stuff. And women love confident guys.