“It turned out that the introverts who were especially good at acting like extroverts tended to score high for a trait that psychologists call “self-monitoring.” Self-monitors are highly skilled at modifying their behavior to the social demands of a situation. They look for cues to tell them how to act. When in Rome, they do as the Romans do, according to the psychologist Mark Snyder, author of Public Appearances, Private Realities, and creator of the Self-Monitoring Scale.”