In this interview clip, Matt Damon talks about the epiphany that he had early on when auditioning for acting roles.

Matt Damon Interview Clip

When you view the other party as someone who is actually rooting for your success, it helps alleviate your anxiety. This directly applies to approaching people and starting conversations. When you realize that they are rooting for you to be an awesome person whose presence would enhance their lives, then there is less to fear.