It's beneficial not only for the players or referees but also for the spectators. ... The players need to know and understand those signals. They're used in many sports, like football, volleyball or basketball. The hand signals help the players to better understand how to proceed.
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Answer:
It's beneficial not only for the players or referees but also for the spectators. ... The players need to know and understand those signals. They're used in many sports, like football, volleyball or basketball. The hand signals help the players to better understand how to proceed.
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