Smiles of the world

For 30 years, I have been constantly on the move, traveling nearly 100 days every year. I recently explored my 100th country. The UN has acknowledged 193 independent countries, so i have a lot left to do.
In every country, I have seen happiness. Happiness that i have chosen to capture in smiles.
Archeologists, firemen, bosses, scientists, miners, foresters, soldiers, rice farmers, priest – well, you get it, the list goes on. There is one thing they have in common, the joy that the have shared. Is there any more universal language?