28 Del. C. § 1551: Review of hands at showdown.

At the conclusion of the round, a player shall place the player’s hand face upward on the table at the showdown as follows:

(1) If there has been a bet on the final round, the player who made the bet must show first;

(2) If there have been 1 or more raises on the final round, the player who last raised must show first;

(3) If the final round has been checked by all the players, the player who acted first must show first;

(4) The subsequent order of showing hands is clockwise around the table from the player who must show first; and

(5) A player may choose to discard a hand without showing it.