Have you notice if you are on a walk, bike ride, hike, a boat, motorcycle, or a run that people seem to wave to each other. Happy to celebrate leisure with others. We certainly don't do that in traffic. Some thing about being outdoors seems to arise in us a sense of connection not only with nature, but with others and brings a happiness to surface that isn't always there as we do laundry, pay bills, and worry about house hold duties.
Too often we stay in our normal routines and feel suffocated by daily stresses. A walk in the woods or on the beach can do more for your mindset than watching another movie or keeping up with facebook.