Run, If your near water QUICKLY wet your closthes or a blanket and run out. If there is heavy smoke, crawl, smoke rises. Stay away from ares you know has gas or heavly flamable. Also DO NOT go back to get things you think are important.
If you can, just run out of house or apt. If can't try to wet a blanket or towel put it over your mouth. Yell to other people in house or apt. If there is smoke.stay low it will be clearer and cooler down there. Run to exit. If there is a closed door.feel doorknob to see if it's hot (metal knob conducts heat). If hot, do not open!!! Try to find another way out. Close doors as you pass them.this will slow fire. If you are stuck go to room with window, close door. Open up top bottom of window. Breathe thru lower half of window.smoke will go out toptie white sheet, towel, whatever out window so firemen can see where you are. Call 911. If you don't live alone, have a spot where you will meet outside if you get separated. Prior to a fire, practice escaping: Know where emergency exits are; know where fire extinguishers are. Keep your cell phone as part of your emergency equipment. It smart of you to want to know.
Stop. Drop. Roll. Keep on doing it until the fire goes out.