Can you tell the difference between the forced grimace of a bad actor and the natural grimace of a person yielding before the pain induced by the words they have just spoken?
Can you tell the difference between the overwrought lines of the bad actor and the natural speech of a normal person?
Can you tell the difference between a mood 'change' that belies the bad actors real attitude beneath the performance, that signifies AN OBVIOUS BREAK IN CHARACTER (see Carlee Soto and her straightening up & forced sigh-frowns) and a genuine mood change in a normal person in reaction to the real and unexpected changes in their immediate environment?
Can you distinguish (genuine) reality programs from scripted programs?
Can you recognize the difference between quality and poor acting?
Can you tell the difference between the objects in front of the fire and the shadows cast on the wall?