Hill starts

 
Select 1st gear and find you clutch biting point then, slightly press the accelerator. The usual amount of accelerator or ‘gas’ needed is around 1500 rpm on the rev counter. You will need slightly more than this for hill starts, around 2000 rpm should do.
If when you move off your car begins to roll back it is essential to take action immediately as failure to do so will result in a failed driving test. You have 2 options; either slightly raise the clutch to prevent rolling back further or immediately depress the clutch followed by the foot brake. The latter option is preferred if you are not too confident with clutch control although it will require you having to start the entire moving off procedure again.  A great deal of emphasis on clutch control is the basis of hill starts.
When you do move the car off, depending on how steep the hill is, your car will have to work much harder to gain momentum. You may need to release the clutch from the bite point area slower than usual to prevent stalling, plus you may need to keep the car in lower gears (1st, 2nd etc.) for longer than usual as the engine will have more power to clime the hill in these gears.