Throw-ins are awarded when the ball crosses a sideline. The side that did not touch it last takes it, with the player putting one foot on the line where the ball went out and passing it back into play. There is no requirement for a throw-in to be taken by a player; a referee can call one at any time during play. There are three ways that a throw-in can be scored: if the ball goes out of bounds before being touched by a player on either team, or is blocked by a defender above the waist; if time runs out while the shot clock is still running; or if a player from the opposing team throws his arm up in the air (he cannot block or shoot). In all other cases, the ball remains in play and a new throw will be called when appropriate. A team gets one free throw for every two points they score after the first 12 minutes of play. Teams then get two free throws for every point after the first twelve minutes of play. If the game goes beyond the first half, teams will continue to receive two free throws per point scored thereafter. In addition to scoring goals, players often throw the ball in to move their feet or change directions. Throwing in is an important part of the game and should not be avoided even if you are about to get fouled because the opponent may also throw in.