The garter is the preferred way of receiving a tip. The dancer on stage, after she has danced a few seconds, will gently tug the garter away from her thigh. Into this space the man inserts a single, usually folded lengthwise. Most of the women will wear the money they make in a tidy stack with a rubber band around it, folded over the garter. The more money on her garter the more in demand a woman becomes.
Customers are interested because others have been interested before.
Another way of taking singles is for a dancer to grasp her breasts and squeeze them around the money. This evolved as a way of giving the customer a cheap thrill, and perhaps allowing a little contact, a way to thank an especially generous patron or as an encouragement to tip again. This is particular to runway clubs because of the lack of table dancing. Four stacks of singles are placed lengthwise in the palm between fingers and thumb while the fingertips of the opposite hand scan across each bill. The money floats out, landing at the feet of the dancer in a pile.