First things first, you need to access the car's engine, which is done by popping (A.K.A. opening) the hood of the vehicle.

Locate the hood release lever that is found under the dashboard to the left of the driver's side and pull it.

Some cars may have their hood release levers near the kick panel of the driver's side instead, so you could also check there if it's not under the dashboard.

After pulling the hood release lever, the hood will open a gap just big enough to access the secondary release lock. Push that lock to the side to fully release the hood.

With the hood fully released, start lifting it carefully up, then prop it up using the hood shock(s) or prop rod(s) that comes with the car.