These observations pertain to texting and not face-to-face conversation?

I don't think that analysis through texting behavior is all too reliable because you never really know what the other person has going on at the moment, but I will say that texting can be very intrusive and irritating. This is especially true when you have other things going on at the time(work, contemplation, daydreaming, etc.) and the person initiating the texting demands immediate attention and engagement. If that's the case, it is likely that the person will get back to you at a more convenient time. This is more difficult to do in person, when you can't really avoid conversation without seeming too rude. This is when you smile and nod your head. I don't think this is really type dependent, but rather the level of sociability the individual is comfortable with.