Today on Boston Public Radio: We opened the show with a conversation with NPR legal affairs correspondent Nina Totenberg on her new book "Dinners with Ruth: A Memoir on the Power of Friendships." Then, we opened the lines to hear from listeners about making friends: at the office, in person and online. For the remainder of the show, we re-aired some of our favorite conversations, including: Charlie Warzel on his book “Out of Office,” coauthored with Anne Helen Peterson, reporter Spencer Buell and noise researcher Erica Walker, about health concerns over rising noise levels in the city, the New Yorker's Malcolm Gladwell about his book, “Talking to Strangers: What We Should Know About the People We Don’t Know," writer Lindy West about her book, “The Witches Are Coming." and Lizzie Post, great-great-granddaughter of etiquette expert Emily Post, about her book “Higher Etiquette: A Guide to the World of Cannabis, from Dispensaries to Dinner Parties.”