What are the worst mistakes I could make during a job interview?

Lying to employer, not respecting the dress code, unresponsive or wrongly answered when questioned

If an interviewer asks what your worst attributes are, you respond with "I care too much."

- Lying - Pretend to be the person that this world is expecting to have

Not showing enthusiast in the position. I have been on a few interview that i don't show it and i get passed up on it even though I was excited about the position.

Tell the interviewer why are you looking at me like that

Listing only negatives about it previoud or current role. Always mentioned what was positive to show growth.

If you speak ill of any employers, discuss taboo issues such as sexual harrassment or show too much enthusiasm for certain political stances, you can kiss your chances goodbye. Wear business attire that isnt too flashy, have a clean resume handy, turn your cellphone off and be ready to smile politely with honest-enough answers. Is it there business why you left your last job? No. You ALWAYS leave a position because you are looking for more growth and better benefits. End of story.

Asking what the Salary of the position will be.

Share too much information. Keep answers short and to the point.

Don't cross that line between Confidence and Arrogance

Asking for time off before even being offered the job.

Being late. Being unprepared about the job role and how I'm the perfect fit for it.

Talking down about previous co-workers