For the catcher, he makes sure to hide his sign-making hand between his knees and his catcher s mitt. This ensures that coaches and runners at the first and third bases cannot see the sign. Changing signs If there is indication that the signs have been stolen, the catcher changes the signs. He might do this by adjusting his mask in a particular manner, or by some repetition of finger signals (like one finger followed by a fist). The fundamentals of the game are known by everyone who regularly catches any of the televised baseball games. It has really become more like a religion to many suburban and urban American families. If you do not want to get left behind or if you want to get into lively conversations with your family and friends about the sport, you should first know about these baseball basics. Know exactly what you want to do with the ball even before it is pitched. An infielder must aim to prevent the opponents from scoring by getting the offensive player on third out if the bases are loaded. On the other hand, if the bases are empty, the infielder must be able to get the ball back to the first place as fast as he can or catch it on the fly. The center can also be composed of rubber. A cowhide is stitched tightly to cover the yarn. For this purpose, a horsehide can also be used. Aside from the ball, the other most important equipment on this game is a bat. The bat is usually made of a solid wood material like ash that measures 2.75 inches in diameter. This may be easier said than done and you will realize that this is true once you have tried playing on an actual field. The execution of the tasks involved may be hard, but with the help of the right trainer or a good coach, you will eventually get these drills right or at least become better with each task. Other kids, although not that good at a particular sport wants to play to become socially active - to mingle with their friends or meet new people. The reasons vary by kid's age and personality. Here are some of the main reasons why kids want to learn baseball: 1. For fun - The concept of fun to baseball players vary by age and personality.