Is this type related? To see another person do something in a certain way, and to want to do this, too? For example if a person works in a very efficient quick manner, to want to copy in the way they do it? Or if someone is very slow and lazy and laid back, to want to copy that? Or whatever other thing that characterizes a person? I've done this a lot before and actually been called out on it and told "you're acting like so and so", and it's been usually told in a negative way.