We all know and remember a smiling person - someone whose heart seems to radiate through their teeth. And when they do, notice how it's almost impossible not to smile back...unless you are feeling very, very grumpy! So if you don't feel a smile coming on - why not do it anyway. Not only does it transform your inner chemical production and create 'happy hormones', but when people are on the end of your smile, they smile back (well most do). And if you really don't genuinely feel like smiling at life, the universe and everybody - fake it until you make it!
~ Brahma Kumaris, Mt Abu.