someguy3People that can wiggle their ears, how???
Genetic difference. Just like people who can raise one eyebrow. Not all of us have the same muscle control. Likely a leftover from days where we could point our ears towards a sound like small-eared dogs can.
Anybody can learn to use these muscles. It doesn't just come naturally.
Some people say maybe. Some say maybe not.
The things that it requires most is patience.