"Performance" has its distinctions.
Performances on stage, on the silver screen, and even a con artist's "performance" are all different.
This depends on how the audience views these performances.
For stage actors, their audience sits in fixed seats, watching their performance from a distance. Therefore, they must use exaggerated physical movements and emotionally charged language to magnify the message they want to convey.
For screen actors, the audience sits in front of a screen. Their perspective is entirely determined by the director. Close-ups of an actor's face are entirely possible. Screen actors do not need the exaggerated expressions required by stage actors, but their faces must be "expressive."
Humans are constantly conveying information "beyond the literal words" through their voices, facial expressions, and body language. When reading written text, an average person has only a pitiful 56% accuracy rate in interpreting tones such as "sarcasm."
