It isn't just a case of vulnerability, it is also a case of confidence. A lot of people are just not very confident so they hesitate to explain how they feel. What you are saying about cues, while true, is also not the complete picture. People cannot always tell what someone if thinking or feeling just by cues. It happens that sometimes you joke with someone who takes it really seriously and reacts badly and then you are like WTF and it turns out there is a reason behind it but it just isn't obvious nor was it obvious they were in that mood. Social interactions are a skill they are not innate. So the continue with the dance metaphor, everyone has to learn to dance, some might be quicker learning it or talented and they just do it better while others have to learn in a painstaking fashion simply to get the basics. It takes effort and time. Regarding the ignoring things - it has happened to me, I think of it as lost words, where you say something and no one reacts. However, it sounds like you are talking about people deliberately ignoring you. Can you provide some context to these occurrences? I would just point out that some people are just rude and ignore you not for anything you have done and if people ignore when you are working as a cashier - that just goes with the territory. I have worked the last few years as a cashier and some customers are blatantly rude and ignore you. So discounting those situations who are the people who ignore you? It may be that you'll want to try and be more assertive if people do that, something like 'actually I was just talking you and its very rude of you to ignore/treat me like that', but maybe not right now if you don't have the confidence to be assertive in person.