When it comes to survival, like I've said a few times now self defense is important.
And when it comes to self defense, awareness is a major piece of that. In the military it's actually called "situational awareness."
At any given point in time, you need to know who is around you, what do they look like, how are they moving? What are your options should there be a physical encounter (e.g. a fight)?
What weapons are immediately at hand?
How far away is it? What kind?
Now here's the thing about that ... some "weapons" don't appear to be a weapon at all.
As an example, a decent sized heavy book is actually a VERY powerful weapon and often there are books all over the place.
It's about being aware of your options.
Further awareness is also about your ability to determine something as a possible weapon (or shield) that others may not consider.
My last point on this ... situational awareness is a SKILL that must be honed. You have to work on it.
Pay attention to the cars around you when you drive, what kind they are ... and by "around" I mean within a quarter mile if you're on a major road or interstate.
When you are walking or in a store, how many people are there, what do they look like? WORK on it, be aware of who is around you and what they are doing. Be aware and develop this skill.