Joe Calabrese

“But the eventual results were too intriguing to ignore. When people were placed in front of a mirror, or told that their actions were being filmed, they consistently changed their behavior. These self-conscious people worked harder at laboratory tasks. They gave more valid answers to questionnaires (meaning that their answers jibed more closely with their actual behavior). They were more consistent in their actions, and their actions were also more consistent with their values.”
― Roy F. Baumeister, Willpower: Rediscovering the Greatest Human Strength