Do You Speak Baseball? If you watch a professional baseball game attentively, you will see a subtle game within
the game: a sequence of wordless signals passing among members of a team. These
seemingly arbitrary gestures-a player scratching his nose and then tapping his right
forearm, a coach tugging his cap three times in succession-are actually a secret, closely
guarded code to communicate strategy within the team. An adjustment of a cap might be
an instruction for a batter to bunt the ball; a hand in the back pocket could indicate that
a player should steal a base. As you might expect, opposing teams expend enormous
effort to crack each other's codes. For this reason, teams not only change their codes
often but also intersperse meaningless decoy signals with the real ones, just to confuse
the opposing team.
What is the main idea of the passage?
1. To maintain secrecy, baseball players and coaches must adapt the codes that
they use.
2. Baseball players and coaches use secret signals to communicate strategy to
each other.
3. Baseball players and coaches spend quite a bit of time trying to crack other teams' codes.

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