Do not use facial feedback as your primary signal. Use the logic of the case and the interviewer's explicit questions.

Neutral interviewers may simply be maintaining consistency rather than signaling poor performance.

If you are unsure, summarize your current conclusion and state what you want to test next instead of asking whether you are doing well.

Build comfort with low-feedback mocks so silence stops changing your decision quality. You can also use this CaseBasix guide for a structured review.

I used to read silence as a bad sign too. Practicing with a very neutral partner made me stop chasing reactions.

I would also keep notes on which assumption created the problem. Otherwise it is easy to repeat the same mistake next mock.

For final rounds especially, I think calm delivery matters as much as the exact wording.