The same blank face reads as a different emotion depending on what you cut to next.
When the facial acting is weak, or when you want to reuse the same shot with several meanings.
AI facial acting tends to be exaggerated, so make one calm reaction shot with "neutral expression, subtle". Build the emotion with what you cut to afterward (the product, the price, scenery), which also saves credits.
Four-shot sequence: Shot 1, close-up of a man with a calm, neutral, expressionless face, 2 seconds; Shot 2, a steaming bowl of soup on a table, 2 seconds; Shot 3, the exact same neutral face again, 2 seconds; Shot 4, an empty swing moving in the wind, 2 seconds. The same face reads as hungry, then sad.
Not verified