Interview preparation, step by step.

1. Choose your questions

Start with the questions nearly every interview includes: tell me about yourself, why this job, your strengths and weaknesses, a failure, a conflict. Then add the ones your role brings, like system design for engineers or patient safety for nurses.

As a starting exercise, choose eight to ten common questions and five related to the role. Prepare examples you can adapt when the wording changes.

• All interview questions
• How to answer “Tell me about yourself”
• How to answer “Why should we hire you?”
• How to answer “What is your greatest weakness?”
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• Product manager interview questions

2. Build short answers

Give every answer the same shape: the point in your first sentence, one real example with a result, then a line that ties it to this job. Aim for 45 to 90 seconds. If your best result comes last, the interviewer may have stopped listening.

Write three bullet points per answer, not a script. Bullets keep you from reciting, and reciting is what makes answers sound rehearsed.

• How to answer “What is your greatest achievement?”
• How to answer “Tell me about a time you failed”
• How to answer “Tell me about a conflict with a coworker”
• How to stop rambling

3. Rehearse out loud, with follow-ups

Rehearse by recalling, not rereading. In a study of prose passages, students who practiced recalling the material remembered more on delayed tests than students who reread it (Roediger and Karpicke, 2006). Apply that to your answers: close your notes, say the answer, then check what you missed.

Then add the follow-up. Real interviewers ask “why?”, “what would you do differently?” and “what was your part?”. Use follow-ups to find what's missing: explain your decision, your part and what you would change.

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4. Prepare your delivery

In a study of videotaped mock interviews, few individual nervous behaviors were linked to how anxious candidates seemed, while broader impressions of warmth and assertiveness were linked to interview performance (Feiler and Powell, 2016). So put your effort into a clear opening and an engaged answer, not into suppressing every nervous movement.

On video, look toward the lens for your opening and key points. In a small simulated interview study, evaluators rated recordings less favourably when interviewees looked down at the screen rather than at the camera (Shinya and colleagues, 2024).

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How long should an interview answer be?

For most questions, 45 to 90 seconds. Long enough for one example with a result, short enough that the interviewer can follow up. Behavioral stories can run a little longer if every sentence moves the story on.

How many questions should I prepare?

Eight to ten common questions plus about five specific to your role. Prepare stories you can adapt, not word-for-word scripts.

Should I memorize my answers?

Learn your main point, example and result rather than a script. Practice answering differently worded versions of the question so you can adapt the wording without losing the substance.

How do I practice for follow-up questions?

Answer out loud to someone who will ask “why?” and “how?”, or use an AI mock interview that follows up on what you actually said. Then answer the follow-up again until it's as short as the main answer.