'Shark Tank' investor Robert Herjavec shares the top-3 mistakes entrepreneurs make in a pitch

Over seven seasons of "Shark Tank" and six seasons of its Canadian predecessor "Dragon's Den," Robert Herjavec has seen hundreds of pitches from entrepreneurs looking for funding.

By this point, he can determine whether he can trust an entrepreneur with his money within the first few minutes of a pitch.

The investor and cybersecurity CEO recently chatted with The Ranker Podcast host Daniel Kohn about his new book, "You Don't Have to be a Shark," and explained what he considers to be the top mistakes entrepreneurs make in a pitch.

Here are the red flags that Herjavec looks for from his chair in the Tank. His insights are just as relevant outside of the show, whether you're looking to make a deal with a client or trying to get hired.