• Don't try to put out the fire, Solomon said. Get out and leave the emergency response to the crowd managers on staff. That applies even if a fire extinguisher is nearby. The staff should be trained to know where those are, and you need to head for an exit.

• If the smoke gets thick, you need to duck down to the clean air. If you can't see, head straight until you get to a wall and then follow it, Corbett said. Keep a hand up to find a window, he said. Break a window out if you have to escape that way. Solomon recognized that dropping down could be a tough decision because you don't want to put yourself in peril in the crowd rush.

• Once you are out, go to a prearranged meeting point for your group, like your car or a public transit stop.