This is a simple one - on your practical test, look in your rear view mirror and wing mirrors loads! And make sure you move your whole head to look, and not just your eyes! I failed my first test for 'not checking my mirror enough', when really I was, but only by moving my eyes! The examiner won't be looking at you when you drive, so make it as easy as possible to see every single safety precaution you take, even if you feel silly. Trust me, you'll feel sillier waiting for the bus in the rain when all your mates drive past in their cars! Good luck!