I like this terminology of "high involvement"! My experience with this style is also that if someone doesn't interrupt me I just keep talking, awkwardly, _hoping_ that someone will start talking "with" me (allowing me to pass the conversational baton, and indicating they understand my point), and if no one does I feel like no one must be understanding what I am saying (or worse, that no one is even listening) and eventually feel more and more antsy until I almost have to give up on the whole conversation.