Silent typos

I've found sometimes people in my life that are, let's say, not very talkative, are those individuals whose presence is quiet and who manage to remain static for incredible long periods of time. In no few occasions I've wandered if they were trying to appear as if they were statues or if they were standing some sort of absurd pose for the case, cause manekins make it much better for that purpose. To me these folks are pretty interesting as it looks like they wouldn't have blood on their veins, to me they can result pretty annoying if I pay them attention. Well, I've had two kind of experiences with these strange fenomenas, that I should say that I consider rather too egotistical -in reference to the fact that they seem to take too seriously their egos and social roles and that's suspicious of a lack of true identity and healthy self-. The golden rule for all of them is always lots and lots of tact. First type of experience is that sometimes the silence veils a brilliant mind with original ideas about things and different perspectives about usual situations, people with whom one can establish a dialogue about stuff and it can result enjoyable, they always remain shy on their manners though, which is some sort of a pity for them given that shiness tends to talk about too much vanity. On the other hand are the other persons who don't say a thing because they are too aware of their incompetence re. establishing rapport and talking about common things with others, plus they don't know that so called confidence, so they simply do their figurine trying to diminish their total lack of interest for the rest of the people around. These are like stumbling blocks, one of the other methods to spot them is at art exhibitions that show hiper-realistic sculptures for instance, because when one is a bit distracted it is very easy taking them in the place of the artworks; that's obviously scam, any of the artworks will be definitively much more enriching.