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I think you can almost divide this into two groups. 1 through 3 are things that a cop/soldier/ security guard might watch for. If I show up in uniform (overt symbol of authority that my Cabbella's hat and Tevas just don't seem to convey) and your behavior changes, you're up to something.
4 through 7 are more applicable to a citizen (Cabella's and Tevas). My rule is "Watch the watchers" pay attention to whose paying attention around you, those are the predators.
I think you can almost divide this into two groups. 1 through 3 are things that a cop/soldier/ security guard might watch for. If I show up in uniform (overt symbol of authority that my Cabbella's hat and Tevas just don't seem to convey) and your behavior changes, you're up to something.
4 through 7 are more applicable to a citizen (Cabella's and Tevas). My rule is "Watch the watchers" pay attention to whose paying attention around you, those are the predators.