Isn’t it funny how we categorise people? Like say someone’s got a personality trait... upon discovering it you instinctively associate that person with other traits that fall under such a category. We all do it. It’s evolution.
We sell people short of their full personality by making assumptions about who they are until we know them better. Sometimes this association game is so potent we’ll leave getting to know someone because we’ve associated them with something we don’t like.
...or vice versa. It’s probably the reason so many people think I’m weird.