The “gray man” concept is something all urban preppers should be familiar with. If you’re in a populated area during a crisis of some sort, it’s best to blend into the background rather than draw attention to yourself.
This should be a no-brainer, but how exactly does one blend into the background? Graywolf Survival wrote an excellent article that explains the concept.
The overall message of his article: It’s not how you look; it’s how you act. As you’ll see, even if you’re wearing an orange vest, people won’t notice you as long as you act like you belong. It’s not about literally dressing in gray clothes (although sometimes that is appropriate), it’s about taking advantage of human psychology.
I’ll let the author explain it himself. Follow the link below to check it out.