Don't forget to dose up on the Wild the sphincter of the universe before the test...
1) it'll make you calm down
2) your RTA test person will be your friend
3) you'll probably improve your driving skills
4) and if you fail, you probably won't remember it
Nah, here's some serious advice.
1) Drive like you're 50+ and have no idea of where you are going
2) Drive at least 5-10km/hr below the limit but don't make it obvious
3) As soon as the instructor says something, act (e.g. indicate as soon as he/she says left/right)
4) DO NOT ATTEMPT ANYTHING STUPID
5) Take you time, all Ps tests are time restricted (20-30mins)
6) Always keep looking at all 3 mirrors
I think that's about it, Good Luck!