As the trope, so often correctly, goes: “If you don’t know who the scariest guy in some dark or secluded place is - it’s probably you”.
And if it’s often you, it really can take a while to become fully aware of that and try to do things to mitigate it…
There is a curious synergy that happens when you pair that guy on a walk with a much less imposing women though. Suddenly the people who might have quietly and nervously crossed to the other side of the road when approaching him, instead will comfortably smile and say hello - while the people who might have behaved in ways that could make her uncomfortable (even unintentionally) are more likely to dust off and display their very best manners.
My general rule any time or place where I am not without any doubt the ‘apex predator’ is:
With the corollary to that, when you’re trying to engage peacefully with your surroundings, and are not surrounded by things looking at you like you might be food, being:
Trust is contagious though, so I’d add my voice to those saying try not to let a terrible event in your news feed taint your future interactions with other people. Mutual suspicion and feelings of contempt or disdain and disconnectedness are the things that give licence to people being shitty to each other.
In the same way that real world wild predators are not single-minded killing machines that will instantly slaughter everything they see (except for the indomitable Final Girl who lives to the end of the movie), real world predatory humans are not inexorably out to Hurt Everyone either.
If someone random is going to mug you, it’s much less likely that they are taking such a desperate measure because they fundamentally want to hurt you, than that they themselves have a desperate unfulfilled need that has been ignored for too long. If you treat them like they are worthless, or worse, vermin, they will return the sentiment. If you treat them with more sympathy and decency than others usually do, most people will quickly return that gesture as well and everyone’s day might end a little better than it otherwise could have.
That doesn’t mean don’t be alert and ready to defend yourself by any means necessary if it ever really comes to that. It just means don’t lose sight of that being the last resort on a path that most usually had many ways to get off before you slam into that dead-end crash barrier.
You’re still far more likely to be brutalised or robbed in or near your own home, by someone who you know well, work with, or are related to, than just about any other place in the world by just about any other complete stranger. Stranger Danger is a popular news trope, but it’s not even nearly the flavour of trouble that is most likely to happen to most of the people here.