I would say to Edna3362, you probably don't mean to be harsh, but what you say comes across as harsh judgment on those people who, for various reasons, some of them arguably good reasons, have believed it necessary in their particular lives to rehearse, mimic or mask in order to get by.
It's true that happily there are lots of people who, because of a number of reasons, they may have the kind of life circumstances where this is not only not necessary but they are in a strong position to just go ahead and fully be themselves, autism and all, and there will be basically no negative consequences for that particular person.
However, not everyone lives the same life. There are other people, particularly among the so-called "high functioning," who have found themselves straddling, if you will, two realities, and because so much is expected of them -- work, being one -- some of these people may have found it only destructive to not at least do some "pretending" even though sadly that too can be destructive in other ways. But it's a dilemma which doesn't go unnoticed by we who feel it.
Some of it may be something we find is the only way we can get by. Or at the very least, rehearsal of an important phone call or other social interaction, in order for the encounter to go the best way it can, rather than be a mess of failed communication, which could even have consequences detrimental to that person's life.
Don't knock it until you've found sometimes things do go better, not necessarily by being completely fake, but I mean by conceding that things may go better when you rehearse, or form at least some of the skills expected in the NT world.
Some of us have to live in that world.
There's a fine line between calling something "faking/pretending to be someone you're not" and "learning the skills that may help you succeed more."