If you're confident, you'll do fine. This is from the California DMV website below:
What can I expect during the noncommercial Class C driving test?
The Class C driving test is used to determine your driving competency. You must provide a vehicle that is safe to drive and insured. When you appear for your driving test, the driving test examiner will ask to see your instruction permit(s), driver education and driver training completion certificates (if you are a minor), and proof of insurance for your vehicle.
Your driving test begins with a vehicle safety check. This pre–drive inspection demonstrates that you are familiar with your vehicle and that your vehicle meets the DMV’s minimum safety requirements. You will be asked to identify and/or demonstrate parts of the vehicle commonly used in driving. If your vehicle does not meet the minimum safety requirements, your driving test will be rescheduled.
You will also be asked to demonstrate the arm signals for right and left turns, and for stopping or slowing down. The examiner will ask you to drive out of the DMV driving test line and the driving portion of your test will begin. Your examiner is an observer only and will only speak to give you instructions ahead of time on what driving maneuvers you are to perform. He/she will not try to trick you or ask you to do drive illegally. Your examiner will be marking your score sheet during your driving test.
On the road, your examiner will be looking to see whether you:
• Check traffic, including pedestrians, by your head and eye movements as well as using your mirrors.
• Signal before you pull into or out of traffic, make a turn, or change lanes.
• Drive at an appropriate and legal speed: not too fast and not too slow.
• Leave adequate space between your vehicle and other vehicles.
• Maintain good control of your vehicle.
• Obey all traffic laws.
During your driving test, your examiner will ask you to perform certain critical skill test maneuvers that include:
• Backing your vehicle.
• Driving through intersections (controlled, uncontrolled, and stop signs).
• Completing left and right hand turns.
• Completing left and right lane changes.
• Driving in residential and business areas.
If you make a critical driving error (CDE), you will be given an unsatisfactory test score (failure). A CDE is a dangerous or potentially dangerous driving maneuver. Examples of critical driving errors include:
• Driving at least 10 mph over or under the speed limit.
• Failing to look over your shoulder when pulling into traffic or changing lanes.
• Running a red light.
• Failing to use windshield wipers when necessary because of rain.
When you return to the DMV, your examiner will inform you whether your driving test was “satisfactory” (pass) or “unsatisfactory” (fail). He/she will also go over your score sheet with you, and explain any mistakes you made and stress areas that need improvement. If your driving test is unsatisfactory, you must reschedule for another day and pay a retest fee when you want to take another driving test.
Study the Parent–Teen Training Guide (PDF) to help you with practicing your driving skills and the California Driver’s Handbook to familiarize yourself with the laws of the road.