To say nothing of the "OMIGOD WE'RE GOING TO DIE!!!" facial expressions.
Facial expressions are part of sign language.
Often the facial expressions denote intensity. You could think of them as adverbs, same purpose as adverbs in English.
“To say nothing of the “OMIGOD WE’RE GOING TO DIE!!!” facial expressions.”
LOL. My husband and I were making up our own script with that one irate looking lady. “I ate all the hurricane snacks already, you got a problem with that?” “If you are coming bring beer and more snacks.”