When to tweet, how to behave in a queue and the best way to deal with a troll : Sandi Toksvig's new etiquette guide

http://www.telegraph.co.uk/news/celebritynews/10325746/When-to-tweet-how-to-behave-in-a-queue-and-the-best-way-to-deal-with-a-troll-Sandi-Toksvigs-new-etiquette-guide.html