Many people have told me I am very formal in the way I speak and dress. I did not realize it was a problem until I was about twelve years old, and a few people started to accuse me of being an arrogant jerk. It probably did not help that at that time, I spoke with an unusual accent, and I still had not learned if someone is talking to someone else about something they think they are knowledgeable about, it is not a good idea to correct their mistakes and proceed to lecture everyone in the surrounding area on the subject.
Most people still think I dress strangely, and frankly I don’t care as I hate the way jeans feel and like the way slacks feel (and look), but I did make an effort to make my speech less formal/odd. I still don't use a great deal of slang, but I use contractions and have lost my accent or whatever it was.
I suspect I started speaking in a way that seemed very formal to most people partly because I avoided social interaction; therefore, I was not exposed to the way other children my age spoke as much as most people are. I also had a hard time making out words and how they fit into the situation in which they were said, so when I was little, I learned many of my words from watching old movies and reruns playing on PBS and the BBC. It was easier to make out the phonetics of what people were saying and what the words meant if I was able to watch the same scene play more than once, and the way people speak in old movies and in the UK (or on BBC) tends to translate as overly formal to many people in the US, or at least where I live in the US.
I also tend to write very formally, and I think this is because writing felt so unnatural and strange to me, that the only way I was able to learn to write decently was to pay great attention to its study and to see it as a strict concrete system as much as its nature would allow.
My very formal ways had not been pointed out for a while until I joined wrong planet and started associating with other aspies in general. I relaxed and allowed myself to slip back somewhat to the way I used to talk and write. Amusingly enough, I have had more aspies tell me “it’s not good to be so formal all the time", accuse me of being hostile or cold, and tell me I need to "relax" because of the way I write/talk than non-aspies ever did/do. heh
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While Mr. Kim... has fallen prey to the inexplicable need for human contact, let me step in and assure you that my research will go on uninterrupted, and that social relationships will continue to baffle and repulse me.
- Dr. Sheldon Cooper (TBBT)