“How well leaders manage and direct feelings to help a group meet its goals depends on their level of emotional intelligence.  Resonance comes naturally to emotionally intelligent (EI) leaders.  Their passion and enthusiastic energy resounds throughout the group.  Even so, such leaders might sometimes project a more serious mood, when appropriate, using empathy to attune to the emotional register of the people they lead... That kind of resonance reinforces synchrony just as much as enthusiasm does, because it leaves people feeling understood and cared for."