The reason we practice is that we're able to train our bodies to do things beyond our ability to think consciously. It's the same for playing piano as it is for a say football player. Your body has to react faster than you can think and command your body to react in order to be successful. Different people are good at different things. The maestro piano player particularly can arrange his or her fingers to become very good at playing the piano. Whereas the actor or the comedian has the motor neuro ability to find a way to reach those specific aspects that appear to be excellent to others. That itself has its own brain not a neuro cognitive thing. But they have to know how to mimic.