On the one hand, it's incredibly narcissistic to base your analysis of every situation around you on the notion that anyone is paying any attention to you at all. On the other hand, assuming anything other than that means if you're wrong, then you're wide open to be judged and attacked.
And who wants to be judged? Well, I guess some people are into that. But, if you are into that, would you really want to miss out on it because you weren't paying attention?