A leader’s facial expressions of affect can have far reaching consequences for both leadership and organizational effectiveness. A leader’s affective display may at least influence follower’s affect, performance, decision making, unethical behaviors, and ratings of the effectiveness of their leader. All these outcomes can impact the effectiveness of a leader and the success, reputation, and well-being of the organization concerned. There is no clear-cut relationship between a certain leader affective display and this leader’s effectiveness. Consequently, the most effective leader will display the kind of affect that yield an optimal outcome within the situation at hand.