People tend to flirt only with serious things--madness, disaster, other people's affections. So is flirtation dangerous, exploiting the ambiguity of promises to sabotage our cherished notions of commitment? Or is it, as Adam Phillips suggests, a productive pleasure, keeping things in play, letting us get to know them in different ways, allowing us the fascination of what is unconvincing? This is a book about the possibilities of flirtation, its risks...