Whenever you're in a group of friends whisper something in her ear like "Let's go behind/next to the(something away from the group)" This has worked with every girl I've gone out with, but I'm 16, so if you're like 35 it doesn't work. I've actually used this method to see a girls boobs. But that wasn't even part of my plan. So, unexpected things happen when do the littlest things.