Very interesting insight -
Hmm - let's see - I always hear it is good for themselves and others when one has a smile on their face -
I used to suffer from flat affect for several years - in that I had difficulty showing any expression - it was a mental health issue but it's funny how I was quickly labeled as x,y,z - the flat affect is no longer there and yes I am quick to smile these days and it does make me feel good and hopefully the person at the receiving end as well 😊