Describe what you personally did, in the first person singular. Answering in the plural, which is accurate and modest and is what a great many people are raised to do, leaves the interviewer with no information about you at all, and your contribution is the only thing the question was asking about.
This is not a matter of confidence or of self-promotion. An interviewer is trying to establish what a specific person can be relied on to do, and an answer built entirely out of the plural describes a team they are not hiring.
Eight things asked, and the shape of the answers
- Tell me about yourself, the opener, and the expected answer is professional history in ninety seconds, not biography.
- situation, task, action, result, the structure an English speaking interviewer is listening for in every example you give. Naming the result is the part candidates omit.
- I was responsible for, claiming ownership clearly, which many cultures find uncomfortably direct and which English interviews require.
- I increased it by, giving a number, because an unquantified achievement is heard as a description of a job rather than of a result.
- My strength is, and I am working on, the weakness question, answered with something real and a step already taken about it.
- Why do you want this role, which is about the organisation rather than about your career, and the answer should name something specific about them.
- Could you tell me more about, for clarifying a question you did not fully follow, which is entirely acceptable.
- Do you have any questions for me, and having none reads as a lack of interest. Two prepared questions is the minimum.
Three parts, and the middle one is the answer
Questions that begin tell me about a time when are asking for a specific past event, and the expected shape has three parts: the situation, what you did, and what happened as a result. Interviewers are trained to listen for all three and to prompt for whichever is missing.
The middle part is the one that carries the answer and the one candidates shorten. It is comfortable to describe the situation at length, because a situation is a story about circumstances and nobody is exposed by it, and comfortable to describe the result, because a result is a fact. What you did is the part that is a claim about you.
A useful discipline: for every sentence about the situation, one about your own action. If the whole answer is context and outcome, the interviewer has heard about a project and not about a candidate.
The first question is not an invitation to a biography
Tell me about yourself is asking for a short account of why you are sitting in this chair, aimed at this role, ending in the present. It is not a request for a chronological history beginning with your degree, which is what most candidates supply and which uses the opening minutes on material already on the page in front of the interviewer.
Prepare it as a short arrangement of three things: what you do now, one thing you have done that is relevant to this role, and why this role. It is the only answer worth having close to memorised, because it is the only question guaranteed to be asked.
Where it stops: the plural answer
The stall is a habit rather than a language problem, and it is strongest in candidates who are good colleagues. In several cultures and several professions, claiming individual credit for shared work is genuinely rude, so the honest description of a project uses the plural throughout.
An English-language interviewer reads that differently, and rarely says so. They hear an answer with no agent in it and cannot tell whether the candidate led the work, contributed to it, or watched. Some will probe. Many will simply mark the answer as weak and move on, and the feedback afterwards, if there is any, will be that the candidate did not demonstrate ownership.
The repair does not require boasting. Naming the action is enough: I wrote the migration plan, I was the one who found the discrepancy. Credit for the rest can go to the team in the same breath, and usually should.
Finding out what they actually ask
Glassdoor's interview question archive is free with an account, and candidates post the questions they were asked at named companies. For a specific employer it turns preparation from guesswork into a list, and the questions repeat far more than anybody expects.
It replaced guessing at what a company asks, or asking one friend who interviewed there and remembers two of the questions.
Its limitation is the age of the entries. Posts stay up indefinitely and nothing marks the ones that describe a process the company has since changed, so the list skews towards whatever was being asked two or three years ago. Read the recent ones first and treat the rest as the shape rather than the content.
What it looks like when it goes wrong
The recognisable failure is the answer that ends and leaves the interviewer waiting. It described a difficult situation and a good outcome, and it never said which part was yours, so the natural next question is a prompt for the thing the answer was supposed to contain.
The second is the apology at the start. It is offered as courtesy, and an interviewer hears a prediction, and predictions are the kind of thing people then look for evidence of.
The moves for handling a question you did not fully catch, without turning it into a comment about your English, are on the forty phrases that carry a beginner through a real exchange, and the vocabulary the interviewer will be using is the one that repeats in the adverts rather than the one in a business course, which is the two hundred words that matter in your industry. Both sit under the English that decides whether you get the role.
The question that comes immediately after a successful interview is the one most candidates are least prepared for, and it is the one where the careful language matters most, because it is the only part of the conversation where the two sides want different things: the careful language of asking for more.