I'm kinda asymmetrical on this... Can only move my left ear, can only curl the right side of my upper lip... The only really weird thing I can do is "turning off" my reflexes (like when the doctor explores the knee with the hammer) except the ones involving the eyes.
Here's a new one: Press the back of your middle finger on a table's surface, then move your hand so the palm is facing the table while keeping the rest of your fingers extended (so you're touching the table with 2/3rds of the back of the middle finger and the tips of the others) and there's the trick: try to raise your anular finger (2nd from the pinky) by force of will; very few people can do it.
The only really weird thing I can do is "turning off" my reflexes (like when the doctor explores the knee with the hammer) except the ones involving the eyes.
Here's a new one: Press the back of your middle finger on a table's surface, then move your hand so the palm is facing the table while keeping the rest of your fingers extended (so you're touching the table with 2/3rds of the back of the middle finger and the tips of the others) and there's the trick: try to raise your anular finger (2nd from the pinky) by force of will; very few people can do it.