Luckily, Lizzie Post, the great-great-granddaughter of American etiquette legend Emily Post, wrote a book to help even a cannabis novice navigate the social environment of legal weed. The book, Higher Etiquette: A Guide to the World of Cannabis, from Dispensaries to Dinner Parties, which landed on bookshelves on Tuesday, confronts users’ common cannabis conundrums and other burning questions: ‘Do I take the first hit?’ or ‘How much do I tip a budtender?’ And ‘What should I expect at a weed wedding?’