Discovering the secret life of the most forgettable words -- Ignoring the content, celebrating the style -- The words of sex, age, and power -- Personality: finding the person within -- Emotion detection -- Lying words -- The language of status, power, and leadership -- The language of love -- Seeing groups, companies, and communities through their words -- Word sleuthing -- Appendix: a handy guide for spotting and interpreting function words in the wild.