This is the thing that got me over and over in Student Teaching! My cooperating teacher would ask me to do something, and because it seemed obvious to her what she wanted, it frustrated her when I'd get it wrong. I'd wind up in tears of frustration sometimes, because I was trying so hard to do what she'd told me with no real idea of what she needed! We could not communicate at all. (She is, BTW, the employer I've mentioned who said, "I know you have Asperger's, but I wish you'd said so at the beginning!" when I told her.)
I feel certain that she was giving me non-verbal cues and directions that I simply didn't pick up on. I don't blame her at all for our trouble working together. I guess I should have told her that I have AS (and probably dyscalculia), but I had a couple of reasons. First of all, I'd had no official diagnosis at the time, so I didn't want to tell her in case I was wrong. Second of all, I do not think telling any employer, "Oh, BTW, I have ADHD, dyscalculia, depression, blinding migraines, and AS," is the best idea. Third of all, I had no idea how to tell her in a way that wouldn't cause a negative reaction, because I have trouble communicating in general (not just with her, but she's a good example).
The most aspie thing about me is my intense trouble with communication. I find most of it absolutely impenetrable. All non-verbal cues, from facial expression to tone of voice, are lost on me. In my brain, they basically don't exist. The nuanced speech most people used isn't something I'm capable of -- I've tried and tried to learn it and I can't. (Yet people often think I am using it, and read things into what I'm saying that aren't there. *sigh*) Unless someone says exactly what they want in great detail, I don't understand. I also put way too much detail into things I say (and write), because I crave those details, need those details, get frustrated and panicked and confused without those details! (I only recently figured out not everyone feels this way...like in November 2009, recently.) I do much better with communication when my dog is around, but I can't take him to work, or a bar, or a restaurant!