Oh wait... are we talking about how to do it on a test?
Errr... Don't dip your mirror then lol...
I only did the test a year ago... My instructor told me how to do it properly, but I just did it my own way so... you kno haha
Ermm...I suppose just do it slow, get used to how the car turns and all that, try and get used to how big the car is etc... Practice makes perfect
And trust me dude, it feels SOOOOOO good when you're on a busy (restraunt packed) road with people everywhere and you get it in a tight spot, first go, right out the front door, and your a perfect distance away from the gutter...