A quote from Wiki, which I feel is pretty relevant.
I'm sure you find other bits that fit with what we have come to expect of Tumble Tower.Unlike those with autism, people with AS are not usually withdrawn around others; they approach others, even if awkwardly, for example by engaging in a one-sided, long-winded speech about a favorite topic while being oblivious to the listener's feelings or reactions, such as signs of boredom or haste to leave.
http://en.wikipedia.org/wiki/Aspergers