Find a way to bait, hook, reel and release non verbally when on the dance floor.
I have many non verbal openers - they all work wonders. A successful non verbal opener structure of mine follows:
I have a little led light messgage display necklace. On here i program HI5!! It flashes. I quite literally have girls swarming around giving HI5S just coz of this lil gadjet. i Fukin love it. When my hands in the air and they HI5, i grab their hand and spin them around in a 180 degree circle - (it brings them away from their friends). I then wipe my hand on my leg as if hers was dirty, and we dance.
As for a kiss close on the dance floor - this is my favourite - i usually bite on a glowstick. When im dancing i put it in her mouth. Dont do it to fast, dont scare her. Just hold it out in front of her face and bite your teeth together suggestively. 3 Seconds later, take it out, pull her towards myself and close. The neon glowstick acts as a connection tunnel you see

. If she complies with the bite, she has quite literally given the close consent. Take her and her friends to the bar and game.