Everyone likes to think they're unique, but like it or not, much of your behavior is influenced by copying other people. We're going to mess with your mind as we put you through a series of games and experiments designed to show you why a yawn is so contagious, how imitation leads to flattery and how to discover whether your brain is a born leader or a born follower.

Streaming video file encoded with permission for digital streaming by Infobase on September 04, 2015.

Follow the Leader: Introduction --(1:24) -- Power of Influence -- (2:05) -- Deictic Gaze -- (2:41) -- Yawning Experiment -- (1:51) -- Facial Expression Experiment: Part 1 -- (3:40) -- Facial Expression Experiment: Part 2 -- (2:33) -- Social Influence -- (2:15) -- Misleading and Influencing the Brain -- (3:52) -- Follow the Leader -- (2:46) -- Instructions Game -- (Credits) (0:51).