play:  [pley]
        1. exercise or activity for amusement or recreation; 
        2. manner of dealing with others 
        1. the state of being active, operative, or relevant; 
        2. to move for function freely within prescribed limits

During off work hours it is good to play, enjoy yourself along with the people and activities that make you happy.  

The act of play helps promote social interaction and team work, opens ones mind to new experiences and creative endeavors, and reminds all of us to not take ourselves to seriously.  

Play may offer time to reconsider or offer new approaches when we have to get back to work.

Sketch of Cooper Union Building, NYC