A player should maintain a courteous attitude at all times.
Etiquette of Word and Action
A player should carefully avoid any remark or action that might cause annoyance or embarrassment to another player or might interfere with the enjoyment of the game.
Conformity to Correct Procedure
Every player should follow uniform and correct procedure in calling and playing since any departure from correct standards may disrupt the orderly progress of the game.
As a matter of courtesy, a player should refrain from:
Paying insufficient attention to the game.
Making gratuitous comment during the auction and play.
Detaching a card before it is his turn to play.
Prolonging play unnecessarily (as in playing on although he/she knows that all the tricks are surely his) for the purpose of disconcerting an opponent.
Summoning the Director in a manner discourteous to him/her or to other contestants.
BREACHES OF PROPRIETY
The following are considered breaches of propriety:
Using different designations for the same call.
Indicating approval or disapproval of a call or play.
Indicating the expectation or intention of winning or losing a trick that has not been completed.
Commenting or acting during the auction or play so as to call attention to significant occurrence or to the number of tricks still required for success.
Looking intently at any other player during the auction and play or at another player’s hand as for the purpose of seeing his cards or observing the place from which he/she draws a card (but it is appropriate to act on information acquired by inadvertently seeing an opponent’s card).
Showing an obvious lack of further interest in a deal (as by folding one’s cards).
Varying the normal tempo of bidding or play for the purpose of disconcerting an opponent
Leaving the table needlessly before the round is called.