Why do I keep trying to please strangers I'll never see again?

You adjust your voice for the barista. You apologize to the person who bumps into you on the train. You laugh a little too readily at a stranger's joke. Then, walking away, you wonder why — you will never see this person again. This isn't politeness. Politeness picks its moments — it reads whether the relationship continues, whether anything is at stake. What you're describing skips that step entirely. It fires the same way for a friend and a stranger, a boss and a bus driver. That sameness is the real signal here, not the stranger. A star gives the same light to every observer, near or far, without checking who is watching. That works for a star. It costs you something, because attention and warmth are not free — you spend them on people who were never measuring you at all. If this need feels less like habit and more like dread you can't shake, talk it through with someone who knows you outside this page.