I took this from a Flicker.net story on a photographer.
"Throughout her travels, Mimo is often surrounded by people who don’t speak her language, so she communicates with those she meets through gestures and smiles, hoping they will be returned. “When I get a smile, it’s for me a huge reward,” Mimo says. “A smile is something healing that happens between two people. Whatever was there that was strange between you just melts away.""
SOURCE: http://blog.flickr.net/en/2014/09/05/moments-of-emotion-from-around-the-globe/