Writer’s Desk: Get Started

While touring the country promoting his filmDon’t Think Twice, comic Mike Birbiglia was asked variations on the same question at pretty much every stop:“If I want to be a comedian [or actor or writer or improviser or film director], how do I get started?”

Birbiglia boiled his advice down to “6 Tips for Making It Small in Hollywood. Or Anywhere.” The first tip, though, is the most helpful for people who ask that question:

1. Don’t Wait—Write. Make a short film. Go to an open mike. Take an impr...