Interview Tips: What Not To Do

Acing a job interview isn’t just about saying the right things—it's also about avoiding critical mistakes that could cost you the opportunity. Recruiters and hiring managers spot red flags quickly, and even a small misstep can make a big impact.

Interview tips: What NOT to do

In this article we will discuss the most common interview mistakes, why they matter, and exactly how to avoid them. Whether you're prepping for your first job or your next career move in 2025, mastering these tips is essential.

Why Understanding Interview Mistakes Matters

Before diving into the "do nots," it's crucial to realize why interview mistakes matter:

Why Understanding Interview Mistakes Matters

  • First impressions are hard to change.

  • Small errors can reflect poorly on professionalism and attention to detail.

  • Companies want confident, competent team members—not liabilities.

What NOT to Do in a Job Interview

1. Being Late (or Too Early)

Showing up late signals unreliability and disrespect for others' time. Arriving too early can be equally disruptive.

Being Late (or Too Early)

Best Practice: Arrive 10-15 minutes early. Confirm location, parking, or login details ahead of time.

2. Dressing Inappropriately

Your outfit communicates volumes before you say a word.

Dressing Inappropriately

Best Practice: Research the company culture. When in doubt, it's better to be slightly overdressed than underdressed.

3. Forgetting to Research the Company

Nothing turns off interviewers faster than candidates who know nothing about the company.

Forgetting to Research the Company

Best Practice: Review the company's website, recent news, mission statement, and LinkedIn profile.

4. Speaking Negatively About Past Employers

Bad-mouthing a previous job or boss shows poor judgment and unprofessionalism.

Speaking Negatively About Past Employers

Best Practice: Stay positive, even when discussing challenges. Focus on what you learned.

5. Being Unprepared for Common Questions

You should never stumble on basic questions like "Tell me about yourself."

Being Unprepared for Common Questions

Best Practice: Practice answering common interview questions confidently and concisely.

6. Talking Too Much (or Too Little)

Long, rambling answers can lose your interviewer's interest. Giving one-word answers is equally damaging.

Talking Too Much

Best Practice: Use the STAR method (Situation, Task, Action, Result) to answer questions clearly.

7. Failing to Ask Questions

Interviews are a two-way street. Failing to ask questions shows disinterest.

Failing to Ask Questions

Best Practice: Prepare 2-3 thoughtful questions about the role, team, and company.

8. Poor Body Language

Non-verbal cues can make or break your first impression.

Poor Body Language

Avoid:

  • Weak handshake

  • Poor eye contact

  • Slouching

  • Fidgeting

Best Practice: Sit up straight, make confident eye contact, and offer a firm (but not crushing) handshake.

9. Lying or Exaggerating

Stretching the truth might seem tempting, but it almost always backfires.

Lying or Exaggerating

Best Practice: Be honest about your skills and experience. If you lack something, emphasize your willingness to learn.

10. Being Overly Casual

Even if the interviewer is relaxed, maintain professionalism throughout.

Being Overly Casual

Best Practice: Remain polite, respectful, and focused. Save jokes or personal stories for after you've secured the job.

11. Using Filler Words Excessively

"Um," "like," and "you know" can distract from your message.

Filler Words

Best Practice: Practice pausing instead of filling silence with unnecessary words.

12. Not Tailoring Your Answers

Generic responses don’t impress. Interviewers want to hear how your skills fit their needs.

Not Tailoring Your Answers

Best Practice: Tailor answers to the specific job description.

13. Ignoring Virtual Interview Etiquette

Virtual interviews have their own set of pitfalls.

Ignoring Virtual Interview Etiquette

Avoid:

  • Bad lighting

  • Noisy background

  • Poor internet connection

Best Practice: Test tech beforehand, find a quiet spot, and use professional backgrounds.

14. Being Too Focused on Salary

Bringing up pay too soon can make it seem like you're only motivated by money.

Being Too Focused on Salary

Best Practice: Wait until the employer brings up salary, usually after they express interest.

15. Showing a Lack of Enthusiasm

Energy matters. If you seem disinterested, interviewers will assume you are.

Showing a Lack of Enthusiasm

Best Practice: Show genuine excitement about the role and company.

How to Recover from a Mistake During the Interview

Even if you slip up, it's possible to recover gracefully.

Mistake During the Interview

Tips:

  • Stay calm and composed

  • Acknowledge minor errors if necessary

  • Redirect back to your strengths

Final Preparation Checklist

Before the Interview:

  • Research the company

  • Review common questions

  • Pick an appropriate outfit

  • Confirm time and place

During the Interview:

  • Stay professional and positive

  • Listen carefully

  • Ask thoughtful questions

After the Interview:

  • Send a thank-you email

  • Reflect on what went well and what to improve

Final Thoughts

Landing a job in 2025 is more competitive than ever, but avoiding these common interview mistakes can set you apart.

common interview mistakes

Remember: Interviews aren't about being perfect—they’re about being prepared, authentic, and professional.

Stay confident, learn from each experience, and keep refining your approach. Your dream job is within reach!

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