To help pay for his undergraduate education, Elias Garcia-Pelegrin had an unusual summer job: cruise ship magician. “I was that guy who comes out at dinnertime and does random magic for you,” he says.

Add Yahoo as a preferred source to see more of our stories on Google. Magicians use a lot of psychology to trick you during a performance. (Getty Images) (Getty Images/iStockphoto) The exploits of any ...