Here, at those words, Draco actually stabbed at his pasta, rather than just put it onto his fork. He nibbled at it slowly, then looked back over at Charlie slowly. "How did you know?" he blurted suddenly, needing to get that question out of the way.
"How...how did you know that you fancied blokes?" It was an easy topic, or so Draco thought, one that didn't involve talking about Blaise or Ginny, and one that might answer some of his important questions of the year.