Great read and well written
Smile is the most simple, easy to do and easy not to do type of action/gesture. In fact sometimes when I find myself in a not-so-great State of mind if State of being, one smile to myself ( even if I look like a weirdo LOL) shifts my physiology and emotions. I start thinking clearly. I become thankful for the gift of life and that one breath right now.
Now when some other person smiles at me ( some cultures don't accept stranger's smile with the right intent) it is like saying, feeling And thinking
Hey we are all connected, safe and are there for each other