The other day when I tried to follow a stranger home is called echopraxia - "the involuntary repetition or imitation of the observed movements of another."
I heart wikipedia:
An aversion to loud music and naturally loud environments (such as clubs and bars) is typical behavior of a dyspraxic individual who suffers from auditory oversensitivity, while only being comfortable in unusually warm or cold environments is typical of a dyspraxic with temperature oversensitivity. This typically occurs if the dyspraxia is comorbid to an autistic spectrum disorder (PDD) such as autistic disorder or Asperger syndrome.
I like warm, silent, dark environments.
I heart wikipedia:
An aversion to loud music and naturally loud environments (such as clubs and bars) is typical behavior of a dyspraxic individual who suffers from auditory oversensitivity, while only being comfortable in unusually warm or cold environments is typical of a dyspraxic with temperature oversensitivity. This typically occurs if the dyspraxia is comorbid to an autistic spectrum disorder (PDD) such as autistic disorder or Asperger syndrome.
I like warm, silent, dark environments.

I've never heard of echopraxia before, that's interesting. Sometimes I follow people without realizing it (particularly if I am talking with them or something), but that's usually because I can't talk and pay attention to where I'm supposed to be going at the same time, eheh.