Be careful on the first corners, the first lap and the opening laps with all the cars in close proximity are tricky. The race is not won on turn 1!
Don't do ridiculous dive bombs and race fairly. If you are involved in an accident, make sure you hold the brakes and if you need to rejoin, do so in line with the flow of traffic.
Respect any type of flag. if you have a blue flag, don't make any reckless moves but stay on your line and facilitate overtaking as soon as possible.
Remember, it is the responsibility of the person you are overtaking to make a clean move.
Yellow flags are not an invitation to gain positions, if you are under a yellow flag be prepared to slow down and possibly even stop, if you overtake a car that has slowed down for a yellow or white flag you should give this position back