Thanks for the pointer. I think it is a must read for me because I'm probably very bad at mentalizing. I just scrolled it through right now and found this:

"Normally, when we interact with others, we automatically go beneath the surface, basing our responses on a sense of what underlies the other person's behavior, namely, an active mind and a wealth of mental experience. Thus we are natural mind readers, and mentalizing entails accurate and effective mind reading."

To me, it's definitely not "normal". I've discovered that I listen/read peoples' words and infer from that what they want to say. It doesn't occur to me that there is something behind these words and that people are actually trying to express this something.

When I think about people in general then I get a sense of boredom and I've understood that this is because I actually don't think about people as possessing and "active mind and a wealth of mental experience". I don't really know how this is possible because I know for fact that I'm not the only one with the "active mind and a wealth of mental experience" but somehow in the way I sense the world this knowledge doesn't sink in.