when a player has a relatively weak hand but suspects their opponent may be bluffing is called a hero call. Calling a bet prior to the final betting round with the intention of bluffing on a later betting round is called a float. In public cardrooms, placing a single chip in the pot of any value sufficient to call an outstanding bet or raise without a verbal action declaring otherwise always constitutes a call. If necessary, any "change" from the chip will be returned to the player at the end of the betting round, or perhaps even sooner if this can conveniently be done. If, when it is a player's turn to act, the player already has an oversized chip in the pot that has not yet been "changed" and that is of sufficient value to call an outstanding bet or raise, then the player may call by tapping the table as if checking. In public cardrooms and casinos where verbal declarations are binding, the word "call" is such a declaration. In public card rooms, the practice of saying "I call, and raise $100" is considered a string raise and is not allowed. Saying "I call" commits the player to the action of calling, and only calling. Note that the verb "see" can often be used instead of "call": "Dianne saw Carol's bet", although the latter can also be used with the bettor as the object: "I'll see you" means 'I will call your bet'. However, terms such as "overseeing" and "cold seeing" are not valid. Fold To fold is to discard one's hand and forfeit interest in the current pot. No further bets are required by the folding player, but the player cannot win. Folding may be indicated verbally or by discarding one's hand face down into the pile of other discards called the muck, or into the pot (uncommon). For this reason it is also called mucking. In stud poker played in the United States, it is customary to signal folding by turning all of one's cards face down. Once a person indicates a fold or states I fold, that person cannot re-enter the hand. In casinos in the United Kingdom, a player folds by giving their hand as is to the "house" dealer, who spreads the cards face up for the other players to see before mucking them. Etiquette Action and betting When participating in the hand,