Links to several articles are included below. Hopefully they'll be helpful.
There's lots you can do besides just showing up for your game.
Being ready is pretty basic. Arrive early and do warm-up exercises with the rest of the team. Dress appropriately in your team shirt & hat and suitable pants and shoes. Wear (or at least bring with you) a sweatshirt or jacket if it's cold? (You can wear it over your uniform if needed.) Bring your glove and maybe some water so you can stay hydrated. Coming prepared means coming equipped & ready to participate! If it's sunny - and we hope it is - bring sunscreen!
Learn more about the game and how to develop your skills: