Try https://www.youtube.com/watch?v=fwgJgTL5JmE

I can say circa 1990 people in my pod noticed this phenomenon that "ruling class" people who get interviewed on TV as well as many TV performers (new anchors!) seem to show a kind of asymmetry of facial expression that you don't see so much in ordinary people.

Today we might blame the botox but it's widely thought that this is a sign of emotional suppression

https://www.jnforensics.com/post/chirality-a-look-at-emotion...

Though as much as we wish we could be observant and understand people like Cal Lightman in Lie to Me signs of deception are never completely reliable.