#3 Don’t pick her up. Using a pick up line may be smart and cocky, but in most cases, pick up lines fail. The best way to figure out when and how to talk to a girl is to avoid pick up lines and use pick up circumstances instead!
If it’s a conference or a gallery and she walks up to a display, stand next to her and say something out of the blue like “do you know how long it took to make this?” or something just as casual. Likewise, whether it’s in the office, a park or even a bar, look around and ask her a question that’s relevant to something around her.
But always remember to keep it vague. A vague question makes a girl wonder for a few seconds, she’s going to end up responding to you.