(1) Always signal with your highest card.
(2) Pause before you play it.
(3) Put it down not only with emphasis, but in a special corner of the table mutually agreed upon beforehand. (Note,[30] [page 59].)
(4) As soon as the trick is turned, ask to see it. (See [note] to [Law 91]).
“Why the wicked should do so,
We neither know, nor care to do.”