Really be conscious to “read the room” when interacting with other players. You might have some nervous energy that you feel like talking away, but some people are in a good position to be approached while others may not be. If you see someone who is very intently watching a match and they’re not talking to anybody, let them spectate and talk to them when they break away from watching. If someone is talking and casually chatting between balls, you’re good to approach.
Really be careful not to make contact with other players while playing. If you need to walk behind someone who is at a game, really be careful not to brush by them as you pass. I don’t have a long stance, and I can’t tell you how many times I’ve been bumped into while playing. It’s super distracting. It can get crowded, but it’s MUCH better to wait 5-10 seconds for the area to clear up before you try to slide through.
Don’t narrate someone’s game if they can hear you. It’s EXTREMELY distracting to have someone behind you saying, “oh, if he/she just hits that ramp they’re moving into the lead.” Sometimes your narration runs counter to their chosen strategy or it might align with it, but either way, it’s a distraction. Keep commentary to a low enough volume that active players won’t notice.
Be friendly! You’ll play better and feel better about your day if you’re having positive interactions with your opponents. Seriously, just be chill. If I had to write the pinball 10 commandments, #1 would be, “Be cool.”