In the third of our five-part discussion, Keith Ferrazzi, the author of Never Eat Alone, explains why cultivating vulnerability is important for learning and for developing successful companies. 

"When you are willing to open yourself up and share yourself more authentically.... even though it's not the norm, people will respond and it will be more appreciated," he says, noting that the companies and people that can show vulnerability always have an advantage. 

For more, see our other segments: 
Part 1: Build relationships before you do business
Part 2: Why contacts are more important than wealth 
Part 4: How to add value to your business contacts