I can usually process stuff fast enough so this isn't an issue, and in "emergencies" I can even shut out the anxiety and focus solely on "okay, what needs to be done here?" I put emergencies in quotes because the example that comes to mind is when I texted the girl I had feelings for asking if she could talk later that day (in such a way that she most likely guessed what I wanted to tell her). She agreed, and I waited around and studied for finals some. About an hour before she said she would be back at the building (class building, it was finals week), I decided to go get a drink from the vending machine. On the way there, I turn a corner and almost run into her. I hadn't been expecting her for another hour, so for a solid second or two my brain completely craps its pants before the "okay, ADJUST" reflex kicked in.
For those wondering how it went, I stuttered like hell, improvised what I said when I realized what I had planned sounded nowhere near as good as I thought it would, and completely forgot to think about eye contact. But she had the biggest smile the entire time, and she was extremely flattered and pleased. So it went great.
(She has a boyfriend, so I wasn't doing it expecting her to reciprocate those feelings; I was doing it because I didn't want to leave it unsaid. I didn't get my hopes up beforehand, and I did what I set out to do, so I have never felt better about a rejection in my life).
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I'm never gonna dance again, Aspie feet have got no rhythm.