To drive defensively you need to keep your eyes moving and pay attention to your surroundings in order to avoid a possible hazardous condition.
To be courteous and not insist on the right-of-way.
Keep a clear head while parking and pay attention to vehicles around you.
Don't be distracted by loud music (you can always turn it down) and...
Always drive safely and remember to obey all traffic signs and the rules of the road.
Good luck on your test.... Hope to see you driving soon!