I can pass pretty well. Imitation, submission, and general sheeple-like behavior is pretty much reflexive for me at this point. I am currently working on saying "NO!" when truly necessary (for example, "Hey, BeeBee, let's go out on the back roads and get really high and take turns and bumps too fast so the car goes airborne! It's fun!!" "NO!" "Hey BeeBee, lend me your housekey so my boyfriend and I can skip class and use your dad's house to have sex while we watch PPV porn on his satellite dish and drink his alcohol!" "NO!" And yes, that really did happen (all except the "NO!" part). That was my ADHD cousin's idea of fun in high school.) and not feeling like an autocratic, killjoy, stick-in-the-mud jerk for it.
I am fairly affable and friendly. I genuinely like people. Not ALL people, but most of them. I wait for other people to initiate contact, because I understand that one such as me is not going to be welcome past a very superficial level in most social circles, but I'm fairly friendly. Just not outgoing.
And yes, social interaction-- even with people who know and understand-- wears me out. I get cranky, and process things even more slowly, and forget more stuff, and have a hard time focusing while at the same time falling into hyperfocus more easily, and I get more light- and sound-sensitive, and...
The one thing I DON'T mind is having a houseful of other peoples' kids. I don't have to play the social game with them. Just stop them from screaming, or fighting, or bullying and change diapers and admire costumes and art projects and get food and drinks and say, "Yes you may" or "No you may not."
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"Alas, our dried voices when we whisper together are quiet and meaningless, as wind in dry grass, or rats' feet over broken glass in our dry cellar." --TS Eliot, "The Hollow Men"