When a performer starts his performance with, "let's try this experiment", the first thing that comes to my mind is that I am in a science class. I get that mentalism is about plausibility, but that doesn't mean it has to be presented as a science. I have also seen some performers call their participants 'subjects'. In my opinion what we do needs to inspire the question "what if?", Because, if what I am performing is a science, I need to be a in laboratory. The other problems with this approach is when most people hear the word experiment, they will assume what you are about to say after that will be a fact but in context of performance, no one will believe what you are saying because you are not a scientist. Your thoughts are welcome.