David Rock makes an interesting observation about the use of energy and emotion and intensity in leadership. He writes:
Studies show that the strongest emotion in a team can ripple out and drive everyone to resonate with the same emotion, without anyone consciously knowing this is happening. The strong emotion gets attention, and what people pay attention to will activate their mirror neurons. In a similar way, the boss’s emotions can have a flow-on effect to others, since people pay so much attention to the boss.
That makes intuitive sense and raises the question of how to channel this positively in the meeting room, the classroom, or wherever, as it could cut both ways. Frustration, anger, optimism, and excitement all can ripple out just as easily.