Don't know how to change spark plugs and want to learn?
Remove the rubber spark plug boot in order to access the plug.
Remove the spark plug by using your ratchet and socket.
Next use your spark plug Gapper in order to gap your spark plug.
Apply some anti-seaze on the threads of your spark plug.
Install your new spark plug. Remember to start the plug with your fingers to prevent cross threading.
Push your spark plug boot down over the spark plug until the boot won't go anymore.
Repeat the previous steps for however many cylinders the vehicle has.
Clean up your area.