It's all about...them.
Most people are chiefly interested in themselves and to sell your magic to any audience you must find out what most of them are interested in. You will have to ask yourself if your magic addresses any of these popular interests of people around the world? And if not, how can you incorporate these interests into your show? Be brutally honest...what tricks do your audiences love & why do they love them?
Excellent observation, Bill. Each time I bring an audience member on stage I try and visualize a photo op for that person’s family members so that they can take pictures of that person onstage.