I had an ENFJ prof who liked to give me a hard time, whack me with a newspaper/book playfully occasionally. I just ran into him today and he called me by my last name and for the most part, he would call me by my first name. "____, didn't expect to see you here... stop by my office sometime."
I think it's safe to say that he likes me well enough but we are NOT friends by any means.
EDIT: it was a male prof... don't know if that makes a difference.
I am kinda the same way, female ENFJ.