Book excerpt: For over twenty years, psychologist Professor Richard Wiseman has examined the quirky science of everyday life. In Quirkology , he navigates the backwaters of human behavior, discovering the tell-tale signs that give away a liar, the secret science behind speed-dating and personal ads, and what a person's sense of humor reveals about the innermost workings of their mind- all along paying tribute to others who have carried out similarly weird and wonderful work. Wiseman's research has involved secretly observing people as they go about their daily business, conducting unusual experiments in art exhibitions and music concerts, and even staging fake sainces in allegedly haunted buildings. With thousands of research subjects from all over the world, including enamored couples, unwitting pedestrians, and guileless dinner guests, Wiseman presents a fun, clever, and unexpected picture of the human mind.