First of all, GOOD LUCK!!!!
Ride carefully and confidently. As others have said, dont
dawdle. Make progress and show the examiner you aren't afraid to do so.
Pay attention to road signs and posted speed limits. A "30 Zone" sign means you
should be at 30 or below as you pass it, not starting to slow down
to 30 as you go by it.
Watch junctions and pay attention to other road users and react accordingly to their actions. Try not to stall the thing.....!!!.
Draw upon everything you have been taught during training and you should be fine.
Above all, the best advice I can give is
relax.
It's easy to say, but try not to get too uptight, as it only clouds yer judgement and actions. If you fail, you fail. You can always re-take the test a few weeks later on.
I wish you all the best, and be sure and post back and tell us how things went!!!.