If you have someone to ride with, do so as much as you can between now and then. Preferrably in the area where you will take the test, as you'll be more used to your surroundings. If you don't have anyone to ride with, drive the area, looking for signage, and getting the feel of the area, so you're not surprised by anything.
Don't be nervous. Cancel turn signals after you turn. Have your eyes out for ALL signage (school zone....know hours of operation and speed), speed changes, etc. Do not get too close to the stop line in the road, and do NOT touch it with your front wheel. Practice starting on a hill. Look where you want to go. (if you look at what you don't want to crash into, you'll crash into it....if you get squirrely, just focus where you WANT to go, and your head/eyes/body will lead you there)
Make sure lights/horn/brake light are fully functional, or they'll cancel your test as your vehicle won't be deemed road-worthy.
Good luck!