The following are examples of violations of procedure:
- 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 a 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 of observing the place from which he draws a card (but it is appropriate to act on
information acquired by unintentionally 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.