I have seen barriers melt when I have smiled in strange lands. I have felt my heart melt when someone smiled at me....How many times do you dig yourself out of the darkest places when a friend smiles at you? Here is a picture of me smiling when I realized that oceans can be warm too, something I had forgotten after 5 years of living in Wellington!
Here is an intriguing talk about the power of a smile :)
Has a smile from a stranger ever transformed your day?...opened doors?...made all the difference?