To finish off the Basics series, the Have Fun! card.
The goal is for everyone to have fun. The other players, especially the Game Master wants everyone to enjoy the game. You don’t have to know everything about the game, especially not right away. If you have more experienced players in your group they’ll be happy to help you out.
Don’t be afraid to ask questions. If someone is telling you something you don’t understand, it’s okay to tell them so, especially the GM.
Part of an RPG is exploring, discovering new things about the setting and the game. If you’re just starting out in this setting or as a player, everyone understands that you don’t know it all so don’t expect yourself to. So relax, you’ll get there by listening to the other players and interacting with them. If someone mentions something you don’t recognize, ask them about it, we love to tell about our stories. By the end of the session you’ll probably have a story to tell for yourself.