If this period ends in a tie, the team's will engage in a shootout. A team scores when one of its players shoots the puck into the opponent's net with his stick. Players who help set up a goal get assists, but only two assists can be scored on a goal. Hockey does not employ a large variety of set plays such as football. Instead, the players must react from instinct.
Teamwork is the key.
He supervises the game, calls penalties, determines goals and handles faceoffs at center ice to start each period. Two are used. They call offsides, offsides pass, icing the puck and handle all faceoffs but those at center ice. They do not call penalties but can recommend to the referee that a penalty be called. One sits off-ice behind each net and indicates when a goal has been scored by turning on the red light just above his station.