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Press the clutch down with your left foot. Press the button on the top of the handbrake to release it and pull the handbrake all the way up to its vertical position. Keep the clutch held down all the way while doing this. This method is a little easier if you struggle shuffling your foot quickly from the brake to the accelerator. It's basically the same as the first method, except you're using the handbrake instead of the foot brake. Turn the key in the ignition to start the car. Do not shift your feet or move the handbrake while doing this. Shift into 1st gear. Slowly apply pressure to the accelerator while releasing the clutch. When you feel the clutch biting, or kicking back, you will know that your vehicle is trying to move forward. Once the clutch is biting, press the button on the handbrake down. Move it forward at the same time as you're pressing the accelerator down to release the brake and move the car forward. Essentially, you're releasing the handbrake and clutch at the same time that you're accelerating. There may be some discrepancy between the clutch and the handbrake if you're on a really steep incline.
Pull the handbrake up while pressing the clutch down. Turn the car on and shift into 1st gear. Apply gas with your right foot while releasing the clutch. Release the handbrake at the same time as the clutch.