Right, so something on topic --
The ENFj I have observed most closely is my present boss. He tries to convey, also to himself I think, the typical ENFj - E3 image of successful career man who can charm anyone.
He is very good in talking to people about the "big picture". In meeting with clients and upper management where he has to give a general idea of what is going on, he makes a very favorable impression, as if he not only knew exactly what is going on but was also able to present it well, professionally, and in a pleasant and charming way. At his best - I am not exaggerating - he reminds me of John Kennedy, who was also ENFj IMO.
However, he gets upset and uneasy whenever you try to talk to him about more detailed stuff. If I start to get too detailed when giving him a feedback on something, he gets impatient and annoyed. He also dislikes discussing "unpleasant" subjects, anything that brings up negative emotions. From this point of view, to me, he is something of a lightweight.
The accounting people and secretaries dislike him because he is terrible with administrative details, even signing stuff. He seems to want to keep the power over such things but dislikes the boring work associated to it.
He can act a bit authoritarian when he doesn't get his way through charm. However, he always seems nervous, slightly out-of-control when doing that, which is obvious in comparison to the ISTj manager, who does it in a coldly solid way. The ENFj has lost his temper a few times.
He feels frustrated when not active and trying to accomplish something, but on the other hand the local ISFp always managed to get him to stay too long at lunch, he's sensitive to suggestions to indulge in sensorial pleasures.
He can be very good and generous, even kindly - if he likes you. He definitely divides people into those he likes and those he dislikes. I find it easy to talk to him about "big-talk" subjects until a point is reached when he has very strong and rigid beliefs, then we get nowhere. Even if he concedes a point, he will be back to his initial position a few days later.
He can be ruthless, he sacked an ISTp on the spot about a year ago - however, he dislikes discussing that and it seems to make him feel bad.
Sometimes he shoots himself in the foot when using Fe - - he has reacted to political difficulties by overplaying his hand and making enemies when it wasn't necessary. It's as if his emotions overruled his political judgement.
He has married a very good-looking woman whom I have typed as INFp. She is an executive assistant (ie secretary) but since she works for the European Comission she makes lots of money. They are investing every cent they can in building a huuuuuge house which will either be worth a fortune or be a white elephant. However, they are not thinking of profit but of living in their "dream house". In the weeks before the wedding, all he could talk about was the wedding as a spectacle - the cathedral, the number of guests, etc. In the first weeks after his wedding he still slipped and referred to her as his "girlfriend". He has commented that he doesn't discuss some subjects with her (such as political difficulties at work) since "she wouldn't understand".
As a boss, he is very easy-going about the reality of things, but not the image -- for instance, he doesn't care if you are taking a break surfing the net; he does care a lot if other people see you doing it.