What does it mean to be a true communicator? Two of the best, Academy Award-nominated actor Alan Alda and astrophysicist and science communicator Neil deGrasse Tyson discuss Alda's book, If I Understood You, Would I Have This Look on My Face? It's a guide to improving the way we relate to each other using improv games, storytelling, acting, empathy, science and our own innate abilities.