Indecision may tell your adversaries exactly what they are most eager to know.
Deliberation at the beginning of a hand is permissible and should be encouraged.
The player who interrupts the game to discuss the play should be ostracised from the card room.
Make no overt remarks during the play which may tend to give the adversaries information.
It is usually the inexperienced player who offers an astonishing amount of gratuitous and un-sought-for advice.
It is often difficult to refrain from showing pleasure at the accomplishment of a desired purpose, but consider that undue elation is most aggravating to the adversaries.