How to develop social skills without pretending to be NT?
First of all, a lot is going to depend on your own unique interests.
take me - I make it like a game. Say a person is talking about a country I know little about. I say to myself, "Okay, I love to read, used to read almanacs for fun in fact, what little tidbits do I know about that country that I can add to waht is being said? What stories have I heard other people say?"
So, if you take Slovakia, I had a 6th grade teacher from there. I might even add that his birth certificate would have said "Austro-Hungarian Empire" since he was born in 1916, 2 years before it broke up. (I wouldn't add *all8 that, though i used to.) I might ask, if they visited there if there were any really old buildings, etc.. So, I would feel like I won that round of the game - I had matched the person's topic with facts that helped me to match that person.
Now, that specific example is harder if you're not obsessed with history (including alternate history) like I am - not everyone read almanacs for fun as a child or was glued to maps. But the point is, neurotypicals don't even always show an interest in what others are saying. Yes, learning facts is one of my Aspie obsessions, but the game component of what I'm saying can still be very useful. The object of the game here is akin to return the serve of someone in tennis; countering some fact with a fact of my own. Yes, sometimes I come up with one that isn't relevant, or blow a cousin away by knowing the specifics of Guy Fawkes Day even though I'm American. I get jokes like, "You have no right to know that." But, that's part of the fun to me. So I can let go a little and laugh so hard i fall out of a chair.
Maybe the game to you would be more serious, and you won't play the game like a Dwight Evans - who said the biggest thrill in baseball was running as fast as he could after a ball on wet grass and sliding 15 feet. You might be more like a stern football coach who never shows emotion. But whichever you are, the "information tennis" game can be quite fun, and you don't have to say anything if you don't feel like it. Because, sometimes people do just like to feel they're being heard. then, you can jsut let them keep talking.