Proper social behaviors when it comes to spectating or participating in the game of roulette.
"Playing the roulette tables last night was a disaster. Cory threw cash on the table, tried to play $10 on a $20 limit table, then knocked over another player's Corona. He could really benefit from a lesson in roulettiquette."
"Touching your chips before the dealer removes the mark is an exercise in poor roulettiquette. Mind your manners."