I do think some stems from the lack of self-awareness if not the lack of self-monitoring, if not the lack of certain levels certain concepts of social rules, if not the lack of physical capacity to, along with the lack of external orientation to partner this with.
Then there's other factors, if one happened to have a stim that is visible or loud, easily triggered, or certain oddities that cannot get away with, or heck just happened to not appear conversational.
And then there's this weird egocentry-allocentry orientation with barely in between.
Self-awareness (knowing why do you this, what's happening around you, etc.), social concepts (includes lists of dos and don'ts -- both observed and theorized), self-monitoring (that includes not-being impulsive/fewer to no compulsions), physical capacity (posture, voice, not dropping things or tripping on places, etc.), or sensory tolerances (not prone of meltdowns and shutdowns/lesser need to stim).
Take only three or less. But I'm very sure it's more complicated than this.
In my case... Mine is just... Mostly physical capacity to, then is being driven by pride along with less need for stuff, the rest is blurry and I happened to get away with it most at the time.
I do have the aptitude for acting, but no willingness; I don't and I won't.
And my autism representation is.. I'm pretty sure it leans to overt masculine like representation, despite having feminine like inclinations. Couldn't seem to fit at either.
All I have to do, is straighten up and not do anything that is logically or appear stupid. Not anymore extensive than that.
The rest is mood, current executive function levels and the situation or event.