Remember the acronym, "P.A.S.S."
P -Pull the Pin
A -Aim the extinguisher nozzle at the base of the flames.
S -Squeeze trigger while holding the extinguisher upright.
S -Sweep the extinguisher from side to side, covering the area of the fire with the extinguishing agent.
Remember…Should your path of escape be threatened, Should the extinguisher run out of agent, Should the extinguisher prove to be ineffective, Should you no longer be able to safely fight the fire, LEAVE THE AREA IMMEDIATELY! NEVER HESITATE TO CALL 911