The short answer: a child who talks at home but shuts down with strangers isn't two different kids, and isn't broken. It's a familiarity problem, not a personality problem: home is a room where every reaction is known; a new adult is an unread audience, and silence is the careful child's reasonable first move. It shrinks the same way it formed: through small, low-stakes reps with safe strangers, not through interview drills.
Why does my child talk at home but go quiet with strangers?
Name what's actually happening first, because the gap between the kitchen and the lobby makes parents doubt their own kid. At home, the audience is solved. Your child knows every reaction before it arrives, so words are free. A new adult is the opposite: unknown reactions, unclear rules, real stakes. Going quiet isn't a deficit; it's a strategy, and it's the observant child's strategy in particular. They're doing exactly what observant people do in new rooms: reading before speaking.
Will an interviewer hold the quiet start against my child?
Now the part that should lower your shoulders: this worries you far more than it worries the person across the table. An interviewer has met this exact child many, many times, and a quiet first few minutes tells us about format nerves, not personality. The room is on your side. A decent interviewer's whole craft is bringing a child out: previewing what's coming, settling the nerves, trying doors until one opens. Nobody is grading minute one.
How do low-stakes stranger reps fix the shutdown?
The fix is reps, not rehearsal, because the problem is familiarity, not skill. One small stranger-rep a week: your child orders for themselves, asks the librarian where a book lives, answers the neighbor's question without a parent bridge. Keep the stakes near zero, and afterward affirm the act, not the polish: "you asked her yourself, nice." You're not teaching answers. You're teaching that new adults are survivable, which is the entire lesson.
How do we warm up interview day itself?
Then warm the actual day the same way. Try to arrive with margin; take the tour first if one's offered, so the interviewer isn't the first stranger of the morning; keep the car ride light. For slow-to-warm kids the first ninety seconds carry outsized weight, that gets its own full piece, and everything above is designed to spend those seconds on a child who's already landed.
What mistakes make the shutdown worse?
Two don'ts, both loving mistakes. Don't narrate the shyness in front of your child. "he's shy" said enough times stops being a description and becomes the script. And don't ambush with surprise drills; surprise is the opposite of familiarity. If you tell the school anything, tell them how your child works: "slow to warm up, and worth the wait" is information an interviewer can use, and there's a full piece below on exactly how to say it.
Jennifer Hines spent twenty years as a Dean of Admission at Noble and Greenough School. Her free guide, What They're Really Asking, decodes fifteen interview questions from the other side of the table, and shows why the quiet kid is often the one who lands them best.