Teasing and making fun of someone is something that I just don't get. Supposedly, it is done in humor and to establish a bond between people. Just like your niece, it just distances me. I can't seem to figure out why on earth it is considered humorous and an act of friendship to exploit someone's shortcomings. Humor, overall seems to be mostly centered on exploiting someone's mistakes or shortcomings, and many think that I lack a sense of humor becasue I don't make fun of other people, and I don't "get" their humor when it's directed at me. It's not that I don't have a sense of humor, it's just that I don't think what they are doing is humorous.
I imagine this all comes back to what I see is a relentless need for competition among individuals in society. Men, especially, like to be better than a peer in whatever it may be, even it it does not really get them anywhere. It is subtle, but revealed in anything from what car to buy, how someone talks, even where they live. When someone finds out that they aren't better at something in particular, they will use humor to ridicule that person...thus we have the bully. This is probably one of the reasons why I don't like sports. It's just about someone else trying to prove they are better at something, but the effort to me appears to be fruitless. To me, I feel that working together with others to solve problems is not only more productive, but also much more fun....one of the reasons why I enjoy my job. We all work together to build a/v systems and make a bigger, better, fancier system than the last one we did. Not because we want to be better than another out there, but because we want to challenge ourselves to go beyond.
Like you mention, I can enjoy carrying out an intelligent conversation with another person, sharing discoveries, and experiences in a relaxed manner. Eye contact is not required, nor is dramatic speech, just clear, objective talk without a lot of metaphors and other stuff that takes a lot of mental power to figure out!