Or is it just me?
I find myself spending so much time being "nice" to people and responding in the way they want me to respond--and I can always get the vibe of how people want me to respond in a given situation, or if they have a negative reaction to something I'm doing, even if they don't express it openly--that I generally feel hella repressed (in the conventional sense of the word, not the technical psychoanalytical sense).
Also, for some somewhat associated socionics, I think that one of the best ways to tell an EII from an IEI is that the EII will generally like themselves better when they are "nice," and express their feelings by being nice/in nice ways, whereas the IEI will generally like themselves better when they are completely open with their feelings, and are nice incidentally. Also, I think that part of the way IEI/SLE duality works is that the IEI doesn't act on enough of his impulses, and the SLE acts on too many of her impulses and each admires the other for seeming to naturally possess qualities that they need to apply in their own lives. (Also, I would never tell an SLE that she acted on too many of her impulses, 'cause that'd probably piss her off. It sounds really moralizing. But I was too lazy to come up with a better way to say that).