Baby Talks Guest: Jenny Saffran, Professor of Psychology at the University of Wisconsin-Madison Learning to talk before you can feed yourself or go to the bathroom is a feat we take for granted. How do babies learn language? Answering that question reveals wonders of the human brain. Netflix is featuring her language lab in the series "Babies." How English Conversation Works Guest: David Crystal, Honorary Professor of Linguistics at Bangor University, and author of "Let’s Talk: How English Conversation Works" Conversations are an essential part of our life and communication with everyone around us. But have you ever stopped to wonder how they work?