Ask an Expert: 'Shark Tank' judge on being an entrepreneur

— -- After last week's piece about the ABC show Shark Tank, I was given the opportunity to chat with my favorite shark, serial entrepreneur Robert Herjavec. He was happy to share some business insights with me, and you.

As he seems on the show, Herjavec is positive, affable, smart and savvy, and his story is a classic rags to riches tale. He arrived in Halifax, Canada, on a boat with his parents after escaping communism in the former Yugoslavia. As he says, he had but "one suitcase, few prospects, $20 and no understanding of the English language."

Starting out delivering newspapers and waiting tables, Herjavec launched a computer company from his basement, became an entrepreneur, and eventually sold one of his businesses to AT&T and another to Nokia for $225 million.

Q: You started with so little and became incredibly successful in business. What do you think you did right?

Robert Herjavec: There really is no silver bullet. What it took, and what it takes, is constant perseverance. You have to strive to be a little bit better every day. When I was a waiter, I wanted to be the best waiter I could be and worked to be better at it every day. You know, eventually we all get our asses kicked, so what you have to do is just to keep going, and work to improve at whatever it is you do.

Q: So how important is one's mindset, then? There are a lot of people who come on your show for instance who seem to have a great idea but don't get funding. What is it then that makes for a great entrepreneur?

A: It is human nature, especially as we get older, to look for stability in our lives. But if you want to be a successful entrepreneur, you have to fight against that somewhat, as starting a business requires movement. You cannot stay still.

There are all sorts of different characteristics that make for being a successful entrepreneur, and I think the first is simply perseverance. But you also must have what I call a "foolish belief" in yourself. What I mean by that is that you really have to believe in yourself and your vision, but at the same time, you cannot come across as too boastful. The other thing, and the biggest mistake I see, is that as an entrepreneur, it is your job to add value — to your business, your invention, your customers, and so on. Yes, your idea might be unique and different, but does it add value?

Q: When I watch Shark Tank, one thing I notice is that the people who seem to be the most successful not only have a great idea, but they also have a high degree of emotional intelligence. They can read the room. Do you think that that is accurate for entrepreneurs generally? And I was just wondering — how long do people actually spend with you all, pitching their inventions?

A: Yes, I do think that is accurate. As an investor, I need to believe in not only the product, but the person. People have challenges in life. Stay positive. Be positive. People will want to work with you.

You know, that room is very stressful. The entrepreneurs spend about an hour in front of us, of which you only see about four and a half minutes. In the beginning, they are the ones who are stressed, trying to impress us. But after, once we see that they have something special, the tables are turned as we sharks try and impress them.