3. Always find at least 3 exits.
Wherever you go, be it a concert, a railway station, or even a school, make sure you see 3 exits. It can be both easy and hard. Scan the space with your eyes so that even if there’s only one door you’ll find at least three ways out — for example, large French windows.
Why is it important? If something bad happens, it’ll be too late to look for an exit. If you’ve found and memorized them in advance, you’ll be able to move toward one of them almost without thinking.