Please no one-liners. You can't get anything moving in the rp with just one word or one sentence and it could leave your fellow rp-ers with nothing to work on.
Respect the creator If the person who created the rp asked you to fix something, then please don't be smart aleck and just fix it.
Don't start someone elses RP. The exception to this is if the creator gave the A-OK for someone else to do it in their place.