Let's start you off with a good solid base.
If you are walking and she is coming towards you notice her in your periphial vision and do something physical when she gets into a perimeter of 6 feet. You can do a ninja hand signal or something if your feeling silly, but have a reason why when you go up to her. Posses a
curious like face before your eyes connect and walk over to her at an angle which will allow your shoulder to land near hers. Standing shoulder to shoulder and facing the same direction as her, you can speak to her over your shoulder. Talk like that until she turns towards you, and then turn towards her and start the closing process. Open with something like where is such and such. She will give some answer, what ever she says thank her with am arm hug around the shoulder. Then transition the conversation into a relationship topic. Words for transitioning. Oh while we're talking what do you think about...
When she turns towards you. attempt to hold her hand for a couple minutes to solidify the close.
Do this to 100 women and tally it up and you are a pick up artist. Regardless of your consistency level (that would be a little of the art). Of course there are millions of other things to this art.