The following is a picture-heavy post. All images are either creative commons licensed or mine.
These are facial expressions.
They are a way that people use their faces to express themselves.
They are frequently involuntary – for NTs, at least, facial expressions just seem to happen on their own.
Even babies have expressions, and they certainly aren’t thinking about exactly how to arrange their face.
We also express ourselves through our bodies.
Much of this is also involuntary or unconscious.
We even have a phrase for it. “body language”
It’s not considered bad or wrong or something to get rid of.
This is body language too.
We shouldn’t treat it any differently from all the rest of the body language out there. Ultimately, it’s really no different.