It is about our state of mind and what we expect to see...
Want to see sadness...you could see a deep sense of sadness even in the most cheerful face of Santa-Clauz. Want to see happiness ? You could see that even in this humble pair of cheerful slip-ons !!!. You could see sadness in the happiest of moments...you could see happiness in the saddest of times. Change your inner expectations and let negativity not flow onto others. Abra-ca-Dabra....do that and you will see sad faces smile and happy faces laugh louder than what you could imagine. It is all about how you feel at that moment of time.