I've seen several. I thought maybe we could try to list them all just for a topic. Feel free to add, refine or add to whatever I list.
Maybe we should give these techniques names as well. I'll try.
- Miss Charmer technique:
Ask to join you at your table, chat, small talk, then politely ask.
- Hit and Run technique:
Walk by, spot you, then ask "wanna dance?"
- Sympathy technique:
Sit down on your lap, then ask, "I see you've been getting dances from some of the older dancers, can you give a young girl a chance?" Then start look teary eyed when it sounds like I'm saying no but I said not right now.
- Overbearing technique: She may talk to you first, then she tells you that you need a lap dance. Then she grabs your arms or whatever part of you is handy and starts pulling you towards the dance room.
Got more?

