Participate in the conversation

You play this game by talking to each other. The game is the conversation. Be an active, engaged part of that conversation. Otherwise, why are you here?

Pay attention, even when your PC isn't involved. Try to avoid distractions, in whatever way works for you (maybe take notes, or doodle, or knit, or whatever).

Ask questions. Ask for clarification, for more detail. Be curious! Ask players about their characters, about their actions, thoughts, and feelings.

Offer suggestions. If there's a pause in the conversation and you've got a good idea, offer it up.

Get excited! Ooh and ahh at the awesome stuff the other players say and do. Laugh at each other's jokes. Groan at each other's puns. Cheer when a clutch roll goes your way. Curse the fates when a roll comes up short.

You're going to have off nights, sessions where you're distracted or your energy is low. That's fine. But do what you can to focus, to pay attention, to participate in the conversation and enjoy the company of your friends. Because ultimately, that's what you're here to do.