A smile! It's great to see different smiles from everywhere in the world and it's joyous all around to see positivity, and everyone having the same basis of expression no matter where they're from. :) Hope this helps!
A smile is known to show a positive emotion in most cultures. It portrays joy, pleasure, happiness, amusement, approval and so on. It can be formed or shown at the sides of the mouth when it curves a little bit upward. Thus, it is a means through which people communicate all over the world.
