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 and all players, along with at least one parent/guardian, must sign the Player/Parent Contract when registering.
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!
A Home Run that really counted
A guide to slow-pitch/softball
Bats: Use one that's the proper size for you
Cito Gaston's Tball Tips (Part #1)
Cito Gaston's TBall Tips (Part #2)
Helmets: Wear one that fits properly
How to have fun playing sports & HEATHCLIFF
Learning how to lose with integrity & PEANUTS
Pre-game nutrition tips for youth athletes