<P> In the game of poker, the play largely centers on the act of betting, and as such, a protocol has been developed to speed up play, lessen confusion, and increase security while playing . Different games are played using different types of bets, and small variations in etiquette exist between cardrooms, but for the most part the following rules and protocol are observed by the majority of poker players . </P> <P> Players in a poker game act in turn, in clockwise rotation (acting out of turn can negatively affect other players). When it is a player's turn to act, the first verbal declaration or action they take binds them to their choice of action; this rule prevents a player from changing their action after seeing how other players react to their initial, verbal action . </P> <P> Until the first bet is made each player in turn may "check," which is to not place a bet, or "open," which is to make the first bet . After the first bet each player may "fold," which is to drop out of the hand losing any bets they have already made; "call," which is to match the highest bet so far made; or "raise," which is to increase the previous high bet . </P> <P> A player may fold by surrendering one's cards . (Some games may have specific rules regarding how to fold: for example in stud poker one must turn one's upcards face down .) A player may check by tapping the table or making any similar motion . All other bets are made by placing chips in front of the player, but not directly into the pot ("splashing the pot" prevents other players from verifying the bet amount). </P>

What does check bet and fold mean in poker
find me the text answering this question