46.1 Starting Confidently
The first few minutes help establish your rhythm.
Greet the interviewer professionally, listen carefully to introductions, and avoid rushing because you are nervous.
When the case begins:
- Listen: Focus completely on the prompt.
- Take notes: Capture the objective, important facts, and constraints.
- Confirm: Restate the problem briefly if useful.
- Pause: Take reasonable thinking time before structuring.
Confidence: Move deliberately rather than trying to prove your speed immediately.
46.2 Building Rapport with the Interviewer
A case interview is a professional conversation, not an examination conducted in silence.
Maintain appropriate eye contact, listen actively, and respond naturally to the interviewer. Show that you are working with them to solve the problem.
Good rapport: Be engaged, respectful, and responsive without becoming overly casual.
If the interviewer provides guidance, acknowledge it and incorporate it rather than mechanically continuing with your original plan.
46.3 Staying Present
Candidates often lose focus because they begin evaluating themselves during the interview.
Thoughts such as “That structure was terrible” or “I must be failing” consume attention that should be directed toward the next question.
Better approach: Treat each part of the case as a fresh problem.
Once a section is finished, take whatever lesson is useful and move forward. You cannot improve an earlier answer by worrying about it for the next ten minutes.
46.4 Managing Time
You normally do not need to track every minute yourself, but you should use time intelligently.
Avoid spending excessive time perfecting:
- An initial structure.
- A minor calculation.
- A low-priority branch.
- An exhaustive brainstorm.
Prioritize: Spend more time on issues that materially affect the client’s decision.
If you have reached a clear conclusion from an analysis, state the implication and move forward rather than continuing to explore details that are unlikely to change the answer.
46.5 Managing Uncertainty
Case interviews deliberately contain incomplete information. You will often need to proceed without knowing everything you would ideally like to know.
When information is missing, decide whether it is essential.
If it is essential, ask a targeted question. If not, make a reasonable assumption, state it clearly, and continue.
Useful language: “Since we do not have customer-growth data, I will assume the customer base has been broadly stable unless we learn otherwise.”
Strong candidates are comfortable making progress despite ambiguity.
46.6 What to Do When You Make a Mistake
You will not necessarily fail because you make a mistake. What matters is how you handle it.
If you notice an error:
- Acknowledge: Briefly identify the mistake.
- Correct: Fix the reasoning or calculation.
- Continue: Return to the case without dwelling on it.
Example: “I used the wrong denominator there. Let me correct that calculation.”
Avoid excessive apologies or lengthy explanations. Calm recovery demonstrates composure and coachability.
46.7 What to Do When You Cannot Find the Answer
Sometimes you will become stuck. Do not respond by guessing randomly or remaining silent indefinitely.
Return to structure.
Ask yourself:
- What exactly am I trying to determine?
- What do I already know?
- What equation or relationship connects those facts?
- Can I break the problem into smaller pieces?
If you still cannot progress, communicate where you are stuck.
Better than freezing: “I believe I need to estimate the number of transactions before calculating revenue. I am thinking about the best way to derive that from the information available.”
This allows the interviewer to understand your reasoning and potentially provide guidance.
46.8 What to Do When You Think the Case Is Going Badly
Your perception of your performance is not always accurate.
Interviewers may challenge strong candidates, redirect the case, or provide information because the interview format requires it. A difficult moment does not necessarily mean the interview is failing.
Do not self-score during the case.
Focus on the next task. If your structure was weak, make the next analysis strong. If you made a math mistake, recover and interpret the corrected result well.
One poor moment becomes much more damaging if you allow it to affect the remainder of the interview.
46.9 Maintaining Energy Across Multiple Interviews
Consulting interview days may involve several interviews in succession. Treat each one as a separate event.
Between interviews:
- Reset: Do not spend the entire break analyzing the previous case.
- Hydrate: Drink water if available.
- Eat appropriately: Maintain energy without overloading yourself.
- Move: Stand or walk briefly if circumstances allow.
- Refocus: Enter the next interview without carrying frustration or overconfidence from the previous one.
Different interviewers may have different styles. Adapt to the person in front of you rather than expecting the next interview to resemble the previous one.
Final principle: During the interview, focus on solving the next problem well. Listen carefully, communicate your reasoning, manage uncertainty, and recover quickly from mistakes. Do not waste mental energy trying to determine whether you are passing or failing while the interview is still happening. Stay present, remain collaborative, and give yourself the opportunity to perform strongly all the way to the end.
