From time to time we have to ask some tables to eat silently. This is usually because the table has gone "over the top" with their voices, loud enough to be heard over the usual din of the place!
That's when you will see this sign flipped up on the table top. Students know that when they can see the stop sign, they can't talk until the sign is flipped back.
This group of students asked me to be sure that you readers knew that they were NOT in trouble, just modeling the correct behavior for the camera!
