Yes, I mentioned it other topic. I started using a drawing as a opener. Always have a piece of paper with you and a pen. You see her there, sitting and waiting. Draw a stick figure really fast. The Uglier the better. Then write underneath the stick figure (make it look female) - "Semi pretty girl from starbucks(or whatever)" Then sign yourself like a real artist, also write down the date and then aproach her.
"Hey, you know what? Your beauty inspired me to a higher form of art."
She will look at it and starts laughing her ass off. I use this like 10 times a week and so far It never failed.
Last time I used it, girl looked at me and said "I am so keeping this" and put it in her bra while looking in my eyes.
The reason why this works is - you don't write "hot" or "beautiful", just "semi pretty" which works as neg. You are showing them that you are open minded and fun.
I used it on a bartender once, everyone knows her as a girl who doesn't smile. She literaly never smiles or show any emotional reactions. Like Kristen Stewart

. And guess what? She was laughing really hard.
Also you can use it in comfort building. When she goes to a toilet(and you are waiting for her) or when you meet on a date. It will always make them laugh and you will be quite original.