A while back I was crossing the border between South Africa and Swaziland. It was hot, there were flies around, and I felt grumpy.
We had to wait in a queue on the South African side, cross no-man's-land and join another queue on the Swazi side.
I approached the lady at the immigration desk on the Swazi side. She gave me a big smile, stamped by passport and said "don't worry, be happy".
I entered Swaziland with a spring in my step. I felt happy because a stranger gave me a smile and a kind word. I am more convinced than ever that little things count a great deal.