The world, my world, is pretty much constructed for my benefit and convenience, as a white straight male. You know it's true - most people in power look like me and talk like me. If I didn't actually make the effort, I could make my way through life dealing with the myriad tasks and challenges I have, but without ever really having to think about myself in the midst of that.
Interpersonal cues -- body language, facial expressions, voice tone and pitch -- are great indicators of what is going on during an interpersonal exchange. Think of these cues as a starting point, a spark, to assess the situation; but, don't draw an iron clad conclusion based exclusively on your individual interpretation of their meaning.