Excellent initiative @phortun! Here is my participation:
I took this photo in Cuba, I was returning to La Habana in a taxi from a trip to Viñales, in the back seat was this child, a relative of the driver. I don't remember what we were talking about but his laugh was contagious and I took this picture of him.
Haha looks like you guys had a great and funny time during that ride :) Very nice shot, thanks for your contribution Sofia!