I have a friend who is an ENTP and is good at tailoring her conversation to suit the person she is talking to. She likes to find common ground and so she must be interested in the person she is talking with an picking up clues about them. The technique she uses is rather unique... instead of listening she actually says a variety of things... most of which are shocking and judges a person based on their reactions to them. HAHA! The only time she displays behaviour like what you taling about is if she knows someone quite well and is in rant mode!