researchers at leeds university performed a group experiment where volunteers were told to randomly walk around a large hall without talking to each other. a select few were then given more detailed instructions on where to walk. the scientists discovered that people end up blindly following one or two instructed people who appear to know where they are going. the results of this experiments showed that it only takes 5% of confident looking and instructed people to influence the direction of the 95% of people in the crowd, and the 200 volunteers did this without even realizing it.