In leagues where a pitcher must throw balls to issue an intentional walk, the catcher signals the intent to walk the batter by standing up in the catcher's box and extending one arm straight to the side away from the batter. The pitcher then throws the ball, usually over the opposite batter's box, and the catcher usually has to step to the side to catch the ball. This process is repeated four times, or fewer if the decision to issue an intentional walk is made when there are already one or more balls already on the count.