
Getting the do's and don'ts in a job interview right can make or break your chances. Let me start with the most important do: always research the company thoroughly before you walk in. Know their products, culture, recent news, and competitors. That shows genuine interest and helps you tailor your answers. A huge don’t is winging it with generic responses – interviewers can spot that a mile away.
Another critical do: prepare specific examples using the STAR method (Situation, Task, Action, Result). For instance, if asked about teamwork, don’t just say “I’m a team player.” Instead, describe a real project where you resolved a conflict or hit a tight deadline. On the flip side, a major don’t is badmouthing a previous employer. Even if you left on bad terms, keep it professional. Complaining signals negativity and poor judgment.
Let’s not forget body language. Maintain eye contact, sit up straight, and offer a firm handshake (or a friendly nod if virtual). A common don’t is slouching or checking your phone. Also, ask thoughtful questions at the end – about team dynamics, growth opportunities, or recent challenges. Avoid asking about salary or benefits too early; that can come across as entitled.
Here’s a quick table summarizing key do’s and don’ts:
| Do’s | Don’ts |
|---|---|
| Research the company and role | Arrive unprepared or late |
| Use STAR examples for behavior questions | Give vague or rehearsed answers |
| Ask insightful questions | Ask about salary or vacation in the first interview |
| Dress appropriately for the company culture | Dress too casually or too formally |
| Send a thank-you note within 24 hours | Forget to follow up |
Finally, be authentic. Interviewers value honesty over perfection. If you don’t know something, say so, but explain how you would learn it. Avoid pretending to have skills you lack – that can backfire in background checks. Stick to these guidelines, and you’ll walk out with confidence.

For me, the biggest do is listening more than you speak. I’ve seen so many candidates talk over the interviewer or ramble on. Instead, pause, take a breath, and answer directly. A huge don’t is using filler words like “um” or “like” every other sentence – it makes you sound unsure. Also, never interrupt the interviewer, even if you’re excited. That’s a fast track to being remembered for the wrong reasons.

I’d say the number one do is customizing your resume for each interview. Don’t just hand them the same generic CV. Highlight the experience that matches the job description. A major don’t is lying about your skills – even a small exaggeration can come out during technical tests. Instead, be honest about what you know and show eagerness to learn. That builds trust.

From my experience, the do’s include arriving 10-15 minutes early (but not too early) and having a few backup stories ready. The don’ts? Don’t treat the interview like a one-way interrogation. Engage in a conversation. Also, avoid negative body language like crossed arms or looking at the clock. And please, don’t forget to turn off your phone’s ringer – that’s a classic mistake that kills the vibe.

One do that often gets overlooked: follow up with a personalized thank-you email referencing something specific you discussed. It shows you were paying attention. A critical don’t is asking “How did I do?” at the end. That puts the interviewer on the spot and can harm your chances. Also, don’t bring up salary or time off unless the interviewer initiates it. Let them sell you on the role first.


