This can be a valuable lesson for when you first learn to drive a car with a manual transmission (or "stick"). Hopefully it will prevent you from hitting the car behind you when you start up a steep hill. These methods can also be applied to cars with automatic transmission.
Steps
Method 1 of 3: For Beginners

Step 1. Remember that once you have come to a complete stop, you must pull on the emergency brake
When you step on the gas, take your foot off the manual brake to prevent the car from rolling backward until you begin to move forward.

Step 2. Step on the gas (and take your other foot off the clutch) as you normally would
Soon you will feel that the car is ready to go.

Step 3. Feel that the car is about to move forward, continue to accelerate slowly while at the same time releasing the emergency brake
By releasing the brakes at the right time, the car will already have the throttle power it needs to go up the hill without the need to engage the emergency brake to prevent backing up.
Method 2 of 3: For the experienced

Step 1. Press the clutch in enough to allow the engine to return to normal idle speed

Step 2. Keep the toes of your right foot on the brake pedal and turn that foot in so that your heel is on the accelerator
By leaning your right foot in this position, you can step on the accelerator with your heel while holding down the brake pedal with your fingers.

Step 3. Watch the lights change, then step on the gas pedal with the heel of your right foot and slowly release the clutch
Shortly after starting this maneuver, take your toes off the brake pedal.

Step 4. The engine will rev and the vehicle will begin to move forward
Once you have started moving forward, move your right foot so that it is in a normal position on the accelerator. At this point, you may need to momentarily depress the clutch again. With a little practice, you can control all three pedals with just two feet, reduce engine revs to a minimum, and stop clutch jarring.
Method 3 of 3: Experienced on a Steep Slope
This is not a panic method and requires a lot of practice.

Step 1. Step on both the clutch and the brake

Step 2. Don't release the brakes
Slowly release the clutch a little until you feel vibrations (that is, until you feel the car try to move forward). Look at the rev tachometer; must be below 1000.

Step 3. Hold down the clutch in the same position
Release the brake pedal (the car won't move anywhere).

Step 4. Step on the gas
Release the clutch gradually and you will begin to move forward.
Advice
- If you can, find an empty street to practice. Especially practice your coordination to release the emergency brake while accelerating. Once you've mastered it, it will be a breeze!
- The tachometer (rpm meter) can help you detect the clutch's sticking point. On an incline, hold down the clutch and brake. The rpm will be around 600. Slowly release the clutch only and you will notice a slight drop in rpm, such as 550. Now you can release the brake and the vehicle will not move forward. Be careful not to let the rpm drop too low or the engine will stall.
- Some people describe this "coordination" as hearing the clutch "stick." You may not be able to hear anything except the subtle sound the engine makes when it accelerates. Maybe that's what they mean. Either way, if it's useful to you, you can use it to improve your coordination by properly releasing the emergency brake.
Warnings
- Make sure the emergency brake is in good condition. For example, on normal roads, can you move the car forward with the emergency brake? In that case, it's time to have it adjusted. Obviously, this is important so that the emergency brake can hold the car in place after taking your foot off the parking brake. Otherwise, the car may slide a bit on a steep hill, even with the emergency brake on while accelerating.
- This can be really bad for the clutch and for the brake. Only do it if it is really necessary!