Reflection
Earbuds can be the simplest signal you give to yourself and others: this time is private, this time is for winding down. Slipping them in is a small, repeatable action that changes the tone of the room and your brain without needing explanations.
Turn the ritual into a routine: pick a playlist or a podcast that means "evening" and keep it distinct from daytime audio. Lower the volume, choose calming content, and place a charger or case by the door so the act of putting them in and taking them out frames the start and end of rest.
Boundaries don't need to be dramatic to be effective. Experiment with timing, communicate briefly if needed, and treat earbuds as a gentle, private tool for softening the transition to evening.