Successful advocacy approaches are essential for the practice of law. Lawyers, law professors, judges, and other legal commentators have offered numerous recommendations for how trial lawyers can persuade juries, including techniques in verbal and nonverbal communication, attorney demeanor, and so forth. These recommendations have been put into trial practice handbooks and are frequently taught in law schools as part of the trial advocacy curriculum. However, they often rely on popular assumptions or intuition rather than social and behavioral science. Research is needed to differentiate...