Zoom Clowning

The bizarre and rather undignified habit of signaling to people on video calls that you're paying attention by way of exaggerated and increasingly elaborate facial expressions and gestures.

This includes, but is not limited to: nodding vigorously to show agreement; tossing one's head back and clapping one's raised hands to demonstrate humorous appreciation; pooching out one's lower lip to indicate sadness; crowding the screen and letting one's jaw drop open to signal surprise; grimacing like a gargoyle to convey sympathy.

"Did you really think what Bill said on the call today was funny, or were you just Zoom Clowning?"

"Totally Zoom Clowning. Bill hasn't told a decent joke since 'Nam."