Before attempting to extinguish a small fire, yell for help. Sound a nearby alarm or ask someone nearby to do so. To use an extinguisher, you must first remove the safety pin . Never aim at the top of a fire. Approach the fire from a safe distance and work toward it gradually.
Portable extinguishers contain only limited quantities of extinguishing materials.
So, remember to keep an exit at your back to avoid trapping yourself. Place a coat, or something, at the base of the door to block smoke from entering the room. DO NOT open or break the window. This will aid the spread of fire or smoke to your area.