My research investigates the origins of human morality. In particular, I explore the powerful influence of the drive to be seen positively by others. I generate and test theories for how reputation motives create hidden incentives that shape our moral behaviors, emotions, and cognition—often without our conscious awareness. My work integrates methods from psychology, behavioral economics, and evolutionary game theory. I have used this approach to ask questions like: What gives rise to moral outrage, condemnation, and punishment? Why do we hate hypocrites? And what drives people to cooperate without calculating the costs and benefits?