I would add that it could be more generally a mismatch between your perceptions and another person's perceptions.

I've had people tell me to be more self-confident when I was already feeling confident. After some time I figured out what they actually meant was "Speak up more in meetings" and "When you accept a task, don't mention various things that could interfere with you completing it. Say "I can do it" and leave it at that, even if you have an appreciation for life's uncertainties."