Technical rounds test how you think, but interviewers can only credit thinking they hear. Silent working looks like stuck working, even when it is not. Thinking aloud means narrating your approach briefly, working through it, and checking the result. It does not mean narrating every keystroke or doubting every step out loud.
A rhythm that works
- Restate the problem in your own words and confirm your understanding before solving anything.
- State your approach in one sentence, including why you chose it over the obvious alternative.
- Work through the solution, noting assumptions as you make them, so the interviewer can correct a wrong one early.
- Check the result against a simple case before declaring it done.
If you get stuck, say so plainly and ask a focused question. Interviewers respect a clear request for help more than silent struggling.