I've seen "clicker training". Lady friend tried it.
"Okay, show me how this works."
"I can't, I can't find the clicker." Didn't see that coming.
"Try it again but just snap your fingers. You won't lose your fingers, right?"
I have never tried clicker training with our dogs. I have used dog treats in the past to encourage our dog Bailey to do a cute doggy dance around in a circle or to give me his left or right paws. Eventually we could get him to do the doggy dance or give us his left or right paws without treats. Eventually our dog Bailey started to go into the kitchen, bark for attention, and do his doggy dance for us whenever he wanted a dog treat!