Here are some things you should avoid saying in an interview:

1. Negative comments about your previous employer or colleagues. It's important to stay positive and professional, even if you had a negative experience.

2. Personal information that is not relevant to the job. Sharing personal details such as your relationship status, family history, or health issues is not appropriate and can create an awkward or uncomfortable situation.

3. Lies or exaggerations about your skills or experience. Honesty is always the best policy, and lying about your skills or experience can damage your reputation and credibility.

4. Negative comments about the job or the company. Even if you have reservations about the job or the company, it's important to stay positive and professional during the interview.

5. Salary expectations or demands too early in the process. While it's important to know what salary range is appropriate for the job, it's not appropriate to discuss salary expectations or demands too early in the interview process.

6. Questions about vacation time, benefits, or other perks too early in the process. While it's important to know what benefits are offered, it's not appropriate to ask about vacation time, benefits, or other perks too early in the interview process.

7. Using slang or inappropriate language. It's important to use professional language and avoid slang or inappropriate language during the interview.

Remember, the interview is an opportunity for you to showcase your skills and experience and demonstrate your professionalism and enthusiasm for the job and the company. Avoiding these common interview mistakes will help you make a positive impression on the interviewer and increase your chances of getting the job.