Strangers are walking fiction. Our brains, on the other hand, force us to actively imagine who we see walking towards us, even if what our thoughts make up are dangerously untrue. We care about appearance; we are quietly vain, but we are also private investigators, trying to figure out what each stranger passing us by could hint at. Remember, every stranger is someone and more importantly every stranger is someone’s partner, caregiver, offspring or sibling.