Sometimes I know it’s a joke or sarcasm but I pretend to take it seriously because it don’t know how to react to it otherwise.

This is interesting, because I have the same things happen with different reasons behind them. Responding to a joke as though I didn’t understand it was one is something I find internally amusing, and my own sense of humor is pretty dry/deadpan so people do miss sometimes when I’m “joking back” as it were

I think the dividing line is the intensity/frequency, unless one knows one is diagnosed. My coworkers for example pick up on the differences in the way I talk when I’m joking vs sincere pretty quick, and likewise learn that I find some small amusing in being irritating now and again

Oh cool, a meme can make my cheek twitch

“I can’t be autistic, I understand sarcasm.” Until I realised that I’m heavily context dependent and no I don’t understand sarcasm unless I know for certain that it is sarcasm.

I’ve taken to deadpan saying, “I can’t tell if you’re joking or not.”

Doesn’t work well with strangers, but it works with people who know me and have some level of understanding of the whole thing.