A few years ago, one of my friends showed me how to wiggle my ears. After practicing a bit, I now wiggle my ears when I try to relax my brain, and sometimes do so unconsciously.
Once, I was taking the bus, and a little girl amazingly saw me wiggle my ears, which I didn't even know myself. She asked me why I was doing that. I guess, therefore, that wiggling your ears can be a way to draw attention to other people since they seem to notice it, even though I really was not intentionally trying to attract attention.
