How I think I'd do it...
I think you could start with an explanation of Autism, followed by saying that you have Autism and how it affects you and what are some of the things you do to cope. Integrating it into your project in such a way that it doesn't involve a "big reveal" just more of a "matter of fact" segue.
It'll depend on personality, I suppose. I'm more the type who tries to maintain a rather even demeanor. I loath drawing attention to myself.
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Always do right. This will gratify some people and astonish the rest.