Derren Brown
The subject is put through a round of speed dating, where his shyness and lack of confidence clearly hold him back. Brown then puts the subject through a series of exercises and visualizations to build his confidence. The subject is then put through another round of speed dating, where many more women placed him on their "would like to meet again" list, and he even begins dating one of the interested women. Over a month after the subject thinks all the filming has been done, Brown tests the subject in a robbery.