A survey in 2000 found that the most frequently expressed emotion at work was anger and the least frequently expressed emotion was joy.  When I mentioned this to a group of b-school students a few days ago most were not surprised. Anger, they report, is common in their work experience. Expressing joy is associated with being a ‘lightweight’. It is not professional. Anger is associated with power, joy with weakness. This is obviously a problem for all of us. While anger has a place and can be an intelligent emotion, joy and other positive emotions are critical to idea generation and enhancing cooperation.  The question is, how do we express joy, or happiness, or as Josh has noted, appreciation and gratitude, in a way that is accepted and heard by people?  And how can we convince leaders of the importance - and ‘professionalism’ - of the expression of joy?