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by zozbot234 2408 days ago
>and very good at hiding it

Not really, you just need to know what to look for. A shallow, materialistic person with very little sense of humor, curiosity of the social/intellectual/cultural/creative kind, or visibly empathetic interest in others is a big red flag. The "curiosity" part may well be the easiest to assess as an observer, because it's not something that can be faked easily.