go to pick a girl from karaok (e.g in china, dongguan), do not pay tips when you leave, the gal will follow you.
after 1 shoot, if you want her to leave - pay. if you want her to stay, do not pay
she is not leaving until you pay, that is a simply trick to avoid asking. She will ask you to pay if she do not want "to go", that should not be usual in, say dongguan.
