What are the most common reasons why Aspies unknowingly make people uncomfortable?

What are the most common reasons why Aspies unknowingly make people uncomfortable?

I don't think aspies -make- people uncomfortable, in the sense that we don't intentionally do so.

I find most NTs to be very inflexible and intolerant when it comes to social interactions. For example, say a "typical" NT is talking to me about something in which I have zero interest. If I show even the slightest sign of disinterest in spite of me trying very hard to appear interested, that person may get upset and not talk to me any more.

Yet if I am talking of something they find not interesting, I've had people just turn away from me in mid-sentence and start talking to someone else. No effort to even pretend. "Oh, hang on, I see someone I need to talk to." "I'm not really a physics person. Did you watch the game?" "I'm not really into that." I am fine with any of those reactions, and appreciate when people tell me those things. I'd even prefer "Boring!" over someone wordlessly walking away or turning to someone else and starting another conversation.

I have also found that many NTs seem to think that "no" or "I don't know" is an unacceptable answer, and don't want to say it. Many times I've asked a direct, simple question and had people act as if I were being demanding and were pushing for a specific answer. I just want -some- answer. I'm fine with yes, no, maybe, and I don't know. Changing the subject is not an answer.