Whether you’re lost in the woods or out for a night on the town, it is important to plan ahead and anticipate needs before they arise. This, to a large degree, plays into situational awareness.
For example, let’s say you went out hiking and somehow lost your way. As you try to puzzle out the correct path to take, part of your mind should already shift into survival mode. Mentally inventory the gear you have with you. Begin looking for a good place to bed down for the night, should it come to that. Gather seed pods or other tinder as you go along, stuffing it into a pocket for use later. Earmark potential sources of water so you can come back to them if need be. Pay attention to the flora and identify some wild edibles you might add to the cook pot that evening.
On the urban side of the coin, any time you enter a building, make note of where the emergency exits are located. Get in the habit of mentally planning an escape route. Given how frighteningly prevalent mass shooting incidents have become, this is just common sense. Keep track of your walking route so you know how to get back to your vehicle in a hurry. Look for places where you might be able to hunker down for at least a short time, long enough to collect your thoughts and make solid plans.
Anticipating needs and making plans to meet them is just part of survival.