Emotional contagion is the spreading of emotions or moods from one person to another. It happens with pleasant as well as unpleasant moods. Some people are more contagious than others. 

Josh Freedman, for example, is a powerful agent of emotional contagion. The emotions he transmits always seem to be pleasant and high-energy. On the ‘mood meter’ these would be the emotions of happiness, joy, and excitement. On one or two occasions he has been less exuberant but that typically does not last long. Josh’s positive, infectious moods results in me feeling ready to assist and help. They promote cooperation.  People in general seem to gravitate towards powerful emotional people, but they also appear to thrive when the emotions are strong and positive.  I wonder in what way Josh’s emotional contagion has resulted in the building of a cohesive community?