I'm sure we've all been there - when you want to physically escalate but there's not much you can use in-order to do that, so that it wouldn't look like it's out of the blue. Yes gimmicks and other techniques work such as palm-reading, protective touches and etc... but what I personally like to do when i just think "fark.. I want this girl!" is using compliance (asking her to do something for me) and rewarding her with affection for it. It can be really anything from asking her to hold your coat while you tie your shoe to her helping you pick out new clothes. I've been using this only for a little while but it works like magic, for those who haven't tried this out yet - I definitely recommend you do.