To call means to place a bet equal to the current highest bet. Raise means placing a bet equal the highest bet, plus more to get the highest bet. When the player places a bet which is higher than the highest bet it is called raising. If nobody has made a bet before you, you can stay in the game without calling or raising. It is called checking. When folding you give up and lose any chance of winning. You are out of the game at once. Classic Poker Game Win.