Certain skills are valuable to have but some aren't very important. One of my skills is being able to wiggle my ears, separately. Of course, I can also wiggle them together, coordinately. I admit you have to look closely to see the wiggle but it is there and it is observable. A related skill is lifting an eyebrow, as in doubting, skeptical or quizzical looks.
I think I first began concentrating on ear movement when, as a kid, I saw a video of a person claiming that hair loss is retarted or prevented by having a loose scalp. I think the idea was that a looser, moveable scalp allowed better blood flow and nourishment of the hair on the head. As a wrestler, I have not been very attached to the idea that bald is bad and as a fan of Yul Brenner, I thought the hair on my head was not important.
I guess most people can lift both eyebrows simultaneously as part of the facial expression of shock or surprise. I can lift either eyebrow separately. Doing so makes a pretty good expression of doubt.
If you lack either ear movement or eyebrow lifting abilities, it is not too late to practice and acquire these fundamental abilities.
