Best way I have found to pick up women is just walk up and toss them a simple compliment. Nothing too big, just something like I really like your dress. Then just leave and go over by other people. That usually plants the seed if not it at least gets them thinking WTF why did this random guy come and compliment me and then just leave. If they are interested then they will come to you then its just small talk and take it the conversation where it needs to go. Take them home and then rinse and repeat for the next night.