Smiles.

Most girl's social senses are more acutethan an aveage man's. They can tell when you are faking a smile, so let me let you in ;). Its all in the eyes. Squint a lil if you want to fake a smile. Remember to show your teeth :D

BUT IT'S BETTER IF YOU SMILE IS GENUINE.

You can use your smile as a tool, like a fucking cannon. It can be used as an I.O.I calibrator (google it). Remember, showing I.O.D's are important to defuse her auto-reject response,but I.O.I's are needed to escalate physically and emotionally, and alot of guys don't know how to convey I.O.I's properly. If lost for words, use your smile as your default. BUT only if she deserves it.

So flash a smile, when she amuses you, said something cool or impressed you. They'll appreciate the genuine appeal. Try not to smile all the time, makes you look creepy :P.

Playsafe :)