Edit
The promo and reviews and even the lesson itself indicate that the performance
requires a single partner--in other words, that this is a two person trick. However, as the effect
is described in the video, a third accomplice would be needed. I can think of ways to circumvent
this requirement but the video fails to offer any such method. I think it's the teacher's
responsibility to fully cover the material rather than to force the student to dream up a piece of
it for her- or himself. Hence the loss of two stars. BTW, I think I once saw the late and very
lamented Aldo Colombini use a similar technique at the Castle. He added humor to the performance by
asking the "rude" audience member to "Ask her what she's wearing."