How to change an actor's facial Expression in the green room

Question:  How to change an actor's facial expression in the green room?

Answer:

1. Make sure the hinges tab is selected, then select the "Expressions" option on the left drop-down list.
2. Drop down the right-side list and select the desired facial expression.
3. Drag the slider to the right to implement the change; the farther you drag, the greater the change.