Interview Mistakes: 

The Interview is Coveted

We have all seen the frustrated posts from job seekers describing how they have submitted thousands of applications with very few interviews in return. The interview is highly coveted because it is the critical stage where hiring managers evaluate qualities that cannot be conveyed through a resume or cover letter. This is the moment when your professionalism, communication skills, and cultural fit are assessed directly, making it essential to avoid common interview mistakes that could cost you the opportunity.

Here are some common interview mistakes with some tips on how to avoid them.

Inappropriate Attire

I once interviewed a candidate who arrived in a hoodie, jeans, and sneakers. Although her clothes were expensive, her attire made it difficult to take her seriously. And yes, I did tell her the interview was casual. But when I said the interview would be casual, I meant business casual.

Wearing inappropriate attire is one of the most common interview mistakes. Being well presented is essential, so choose your outfit carefully. Wear clean, freshly ironed clothes and avoid jeans or sneakers, as these do not convey professionalism.

Research the company to gauge its dress code. When uncertain, it is safer to dress more formally. A great tip: If your outfit is something you would wear for a night out or on the weekend, reconsider your choice. Aim to look professional while feeling confident.

Poor Grooming

Similar to attire, neglecting personal grooming is a major interview mistake that can quickly undermine your professionalism and credibility. Unless you are interviewing for a creative or unconventional role where a unique style is expected, it is best to keep your appearance conservative, classic, and polished.

Avoid wearing excessive jewelry or accessories, as these can be distracting and may come across as unprofessional. Strong perfumes or colognes should also be avoided, as overpowering scents can be off-putting in a closed interview setting. Small details such as dirty fingernails, mussed hair, or wrinkled clothing can send the message that you lack attention to detail. According to a survey by CareerBuilder, 49 percent of employers said that poor personal grooming and appearance is a top interview mistake that can cost candidates the job.

By paying attention to grooming and personal hygiene, you help ensure that the focus remains on your qualifications and what you have to offer, rather than on distracting or negative first impressions.

Lack of Preparation for Common Questions

Failing to prepare for standard interview questions is a critical interview mistake, and there is no excuse for it. A simple online search provides numerous sample questions to help you get ready (see here, here, and here for a few examples). We also offer interview preparation worksheets tailored for the CRA role and for practicing behavioral questions.

Research the company’s focus, mission, market position, competitors, and key personnel. Make sure you fully understand the role you are applying for. Be ready to discuss your strengths, weaknesses, career goals, and how your experience aligns with the position. Thorough preparation demonstrates professionalism and confidence, while a lack of preparation signals laziness or disinterest.

Giving Vague Answers

Vague responses often lack specific details, making it difficult for interviewers to assess whether you are truly qualified for the role.

Interviewers use your answers to reduce the risk of a bad hire by confirming that your past actions align with the job requirements. When answers are unclear or overly general, it raises doubts about your capabilities. It may also suggest you are fabricating or exaggerating your experience. This uncertainty can lead to missed opportunities, as hiring managers prefer candidates who provide concrete examples that demonstrate their problem-solving skills and achievements.

Moreover, vague answers can make you appear unprepared or disinterested. In summary, being vague undermines your credibility and reduces your chances of advancing in the interview process.

Not Asking Questions

Not asking questions during an interview is a significant interview mistake and can be seen as a lack of interest in the role. To show enthusiasm, research the company and prepare thoughtful questions, such as asking about current projects, opportunities for career progression, or the company’s five-year outlook.

However, avoid asking questions you could easily find online, such as what the company does, as this signals poor preparation. Also, listen carefully to the interviewer’s responses and use them to build a genuine conversation, helping you establish rapport and stand out as an engaged candidate.

Improper Salary Discussions

Salary and benefits are important, and you will need to discuss them at some point during your candidacy. However, job seekers commonly make two interview mistakes regarding this topic.

First, do not bring up compensation early in the interview process. Asking about salary too soon can make you appear focused only on money rather than the role, team, company, or opportunity. Instead, wait for the hiring manager to introduce the topic…which they will.

Second, be ready to discuss and justify your salary expectations when asked. Avoid vague answers like “I am flexible” or “It does not matter to me.” Failing to provide a clear, well-researched response can make you seem unprepared or insincere. Show confidence and demonstrate your understanding of fair compensation for your role in the current market. Here are some tips to help you prepare in advance so you are ready for this conversation when the time is right.

Negative Comments About Previous Employers

Never speak negatively about former employers, colleagues, or supervisors. This behavior reflects poorly on your professionalism. It also raises concerns about your attitude and ability to work effectively with others. And funny but true: hiring managers may worry about what you might say about them in the future.

Regardless of your reasons for leaving a previous job, always remain diplomatic. Instead of focusing on the shortcomings of others, highlight the positive actions you took to address challenges. Emphasize what you learned from past experiences. Outline the skills you developed and how you plan to apply them in your new role. When asked about difficult situations or coworkers, answer positively to demonstrate your conflict-resolution skills and ability to work well with a team.

A Few More Thoughts:

• Cell phone. Ensure your device is turned off to avoid distractions and show respect for the interviewer’s time.
• Punctuality matters. Arriving late is an interview mistake that can instantly ruin your chances, no matter how qualified you are. Plan to arrive early to demonstrate reliability. But be careful, don’t show up too early because it may make you look desperate.
• Show genuine enthusiasm. Your interviewer will feel you aren’t interested if she experiences a disinterested tone, lack of eye contact, or slouched posture. Be upbeat and be prepared to discuss why this position is a great fit for you and your career goals.

Final Thoughts

Your resume and cover letter may get you in the door, but avoiding these common interview mistakes will help you secure the job. Make a conscious effort to steer clear of these pitfalls, and you will leave a positive, lasting impression on your interviewer.

Do you need help preparing for your next interview? We offer a community that provides guidance. Alternatively, check out our 1:1 coaching options.