why is it possible (for me) to move only the right eyebrow but impossible to move only the left?

Question

My whole face is moving when I try to do it

In: 11

Answer 1

Because you’ve practiced doing one but not the other.

Keep practicing for long enough and you’ll be able to move only the left, too. (Or you’ll get 28 seconds into it and decide you just don’t care that much)