According to Urban Dictionary, you’ve got to try the “Bend and Snap.”
It’s a secret move, which (apparently) has a 98% success rate of getting a man’s attention. When you use it appropriately, it has an 83% rate of return on a dinner invitation.
You “accidentally” drop something on the floor. Then, with your legs straight, you bend down to pick up the object. Then you snap up, and push your chest out.