4. Comparing him to someone else: “You’re like that celebrity, XX.”
Some guys will get indignant at casually being told, “You’re like…”—they may think, “She’s making fun of me and saying I’m like a ‘low quality version of XX!’” Some people feel they’re being made fun of even if they look similar to a good-looking actor, so if you don’t know that he would be pleased to hear something like that, it may be safest to avoid saying it.