EFJs have a hard time understanding how people can get together without exchanging information about their lives. Unless they know real facts about people - where they grew up, where they live now, what they do for a living, what their family's like - they don't have enough data to relate to them.
It should be noted that EFJs are not social butterflies in this regard. They're no more tolerant than Thinking types of "idle chit-chat" that simply passes time or keeps them from meeting their obligations. Feeling types are too conscientious to use time frivolously, and they invariable have a full dance card of responsibilities to others.
If they're not serving on committees, they're meeting colleagues for lunch; visiting relatives; driving the kids to Scouts; making meals for a sick friend; attending graduations, school plays, and concerts; getting people together for celebrations, picnics, dinners, and so forth. EFJs are constantly reaching for their calendar or date book.
It is this broad range of social interactions that separates EFJs from IFJs, although some of their behaviours look similar...IFJs experience themselves as helpers or nurturers, and they're guided by the immediate needs of the people around them. They tend to resist social leadership, particularly the onus of making decisions for a group, but will take a great deal of authority in a service position.
EFJs, by contrast, experience themselves as coordinators who can anticipate and handle the needs that arise in the normal interplay of established relationships with others. This is what makes EFJs so good at careers in sales, teaching, and group motivation. They have no doubt that their way of organizing a situation will benefit all concerned, and they're good at making decisions and delegating tasks as required.