Reflection
Protecting quiet moments is a small art. You don't need to be loud or apologetic; a brief, steady phrase can clearly mark a boundary and keep things civil.
Keep a short repertoire: 'I need a few minutes to focus,' 'I can talk later,' 'Please lower the volume,' or 'I'm recharging right now.' Choose words that fit your voice and say them once with a calm tone.
Pair the line with a gentle pause or a change in posture to reinforce the message. You don't owe a long explanation—repeat the same short phrase if needed and then return to your quiet.