Hi michael,
gentleman driving is the key.
There is nothing to win on the Bude but fun

!
Waiting and typing ''sorry'' after making a mistake which affected another driver - that goes without saying. No matter if it's during training, qualifying or race. And if I'm not sure about my driving style, I would ask the other driver after the race and apologize if necessary.
Communication will solve the problem, not watching replays. But even after leaving the server there is a way to apologize - write a private message (located at the login form). It's very easy to show good manners.
Cheers,
Ufo
Edit: Sorry for my dict.cc and Google-English
