This is something I do, by second nature almost at this point. It has become instinct.
To get the girl more comfortable, especially if it is a day one where you've met her over day game and haven't had much escalation.
When she goes to the bathroom, when she comes back say in a judging like tone: "wait wait... did you even wash your hands...?" Girls become self conscious 99% of the time, and will try to show you "yes I did yes I did I'm not gross!" (females aren't supposed to be gross). When she does, instantly accept it, and go "okay perfect", and grab her hand and walk with her.
Now you're holding hands, and can push kino a little further
It seriously works like a fucking charm, and holding a girls hand while on a date (having the balls to do it, plus some joking humor is prime) is a great way to build comfort, put you in an "us bubble", and build kino escalation.
Try it out, steal it from me I don't mind