If you get the same positive responses, then make your way over. Try not to use a sleazy pickup line you loser. A simple introduction of exchanging names and maybe a simple handshake will do excellently. Well this is the first step. If your initial contact seems to be going well, then it's time to go to the next step.
Every guy needs a gimmick.
Tell her some jokes if you have a few. Women always say that a sense of humor is very attractive. Everyone likes to laugh. Start off simple. A clever knock-knock joke, or one of those how many whatevers does it take to screw in a light bulb jokes will do just fine.