That's especially true when it comes to interviewing for jobs.
The very best thing you can do is prepare. And the best way to prepare is to think about and rehearse - but not memorize! - responses to the questions you'll most likely be asked.
Not sure what those will be?
The online jobs and career community Glassdoor sifted through tens of thousands of interview reviews to find the questions hiring managers most frequently ask.
Here are 40 of the top 50: