I'll be honest and say that I was dared by a male friend and am not as sure of this though he tells me that everyone on this site is kind. I hope he is right and if so would like to hear what you have to say.
Each token is about 5-10 cents and you can tip 1 or as many as you like. Every token amount has an effect of some kind on the performers."
The tokens vibrates the toy remotely which is usually already inside the woman. So your 5 cents makes her shiver. After awhile, she does something extra (sexy) special ...