These things are just going to take time and effort. I know it is frustrating when someone you want to talk to isn't giving you much time. Try not to get too depressed if a girl doesn't talk to you right away. Do what you can to stand out from the crowd. Show them that you are special, and you are, have Aspergers. Sure it limits us in that capacity but it also has some great advantages. Don't advertise that you have AS, but advertise it's strengths. But ultimately be yourself. I've always had a motto: Anyone that doesn't like someone for being themselves isn't worth it. It may sound a little mean, but the point is that if they don't like it, it's their problem not yours.
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So simple, it's complicated