Hello how may I help you? My father wants to play catch with me, and I don't know how to play that game. The game is played by tossing a ball between people How many times do the players have to toss the ball? That is indeterminate. The players can stop at any time Do the players keep a score? If they desire to Is there a referee? If they want there to be.\ How far away do I have to throw the ball? That is also indeterminate