I feel authenticity is a spectrum, however. Too much authenticity and you get the far-too-honest-asshole, too little authenticity and you have the con or shyster. I try not to linger too much on the corners. Speaking of which, my wife and I are currently absorbed with the podcast "Who the Hell is Hamish". If you are interested in people with zero authenticity, it is a must listen.
Authenticity is defined by some psychologists as the congruence between your internal and external self. It’s hard for me to keep one from the other, so what you see is usually what’s going on inside.
I have never been able to shape my face to something other than what I am feeling, yet somehow it has been the appropriate thing to do for my entire life. So if you’re like me, frowning your worries away may be OK!
Here it is, the extra panel: