in retrospect, i think i faked at least 50% of my emotional displays in college mostly picked up from friends what i was "supposed" to feel in various situations and did a pretty good job simulating them, but mostly wasn't actually feeling them, as far as i can tell
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The common thread in that discussion was this shared confusion that people bothered with expressing (and indeed, feeling) emotions for trivial things. Maybe we all had low-energy emotional systems, or something. And largely expressionless faces in general.
