I think that I used to be both. One of my college roommates told me that I was "mugging" in conversations -- she thought that I was trying to be a comedian, doing it deliberately. I wasn't, had never noticed, so I did do some work on calming that down. I was probably successful, too, because now most of the time I'm pretty blank, which at least seems to be socially acceptable as long as I turn up the corners of my mouth when meeting someone, something like that. My daughter thought that I was deaf (still thinks so to some extent: she likes to be right), so we had my hearing tested, and it worked out that I didn't have as much as "normal" on the high end of the scale, and it is normal for someone my age to have lost some there. (But she took that result to mean I'm deaf, as she had thought) But the reason that she thought that I was deaf was that I don't do all the little normal reactions most people do when they're listening, so I must be either deaf or not paying attention. I am paying attention. I do get very unhappy when the noise is rock concert or some club levels, so I stay out of such places.
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Asperges me, Domine