Okay, you're checking Facebook at work...
Do you and your coworkers know what to do if there was a fire?
Be aware of your surroundings.
Check for damaged or overloaded electrical outlets, cords, and cables.
Learn about the building's fire safety features.
Have an escape plan.
Make sure exits aren't locked and are clear of clutter.
If there is a fire: Call 911.
Original source can be found here.