Funny, no matter where you travel and how difficult it is to order a meal or ask for the right bus – smiling always works. It’s probably the strongest of all universal human vocabularies. Everyone on earth understands it. Smiling is a way to communicate with others (if you don’t believe it, think about how much less you smile when you are alone). And it is about relationships between people. You almost feel the bond created by the smile of the Tibetan man walking past me in Xiahe (China), right?
While we all are born with the capability to smile and laugh, we just need to keep practicing and avoid that we unlearn it. An average baby laughs 300 times a day compared to an average adult who laughs 20 times a day − now that’s not funny. http://www.operationsmile.org/