French translation: liste de détails anecdotiques/d'anecdotes
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Explanation: From Wikipedia: Trivia (singular: trivium) are unimportant (or "trivial") items, especially of information. In the late twentieth century the expression came to apply more to information of the kind useful almost exclusively for answering quiz questions: a perfect "trivia question" is one that initially stumps the listener, but the answer subsequently sounds familiar once revealed (otherwise the question would be considered either too familiar and therefore not trivia, or so unfamiliar and obscure as to be unanswerable and not as entertaining). http://en.wikipedia.org/wiki/Trivia
Dans le contexte des jeux, "trivia" signifie la culture générale (voir "Trivial Pursuit"). sleon le contexte ici, il s'agit sans doute de détails sur la vie des personnes en question qui veulent savoir si quelqu'un les connait bien.