Well, I can easily mimic INTP's and 9w1's, but that's because I'm so close to those types that it's not unnatural for me. Actually, I might be a 9, I'm not sure yet. Aside from that, I sometimes mimic sensors when I'm talking to other sensing types. And one time I tried mimicking a Fe-user. It actually went quite well, I think, though it was exhausting.
Actually, this could be an interesting experiment. Start randomly acting like another type just to see what happens...
I don't make a conscious attempt to mimic other types, but I do deliberately choose to emphasize areas of non-preferred functions when necessary to accomplish a specific goal. When doing this, I probably come across as another type. ISTJ when I have to focus on detail-oriented work like tracking budget information at work; INFJ when I recognize I am on a moral crusade about something, and firmly place Te at the service of Fi; ENTJ when I am placed in certain leadership roles, or even give presentations. Interestingly, these are all other J types. I don't fall into P types very readily at all (probably because that usually reverses all the function attitudes . . . )
Hope is the denial of reality. It is the carrot dangled before the draft horse to keep him plodding along in a vain attempt to reach it. We should remove the carrot and walk forward with our eyes open. -- Raistlin Majere
I think it'd be Fi..or maybe it's Fe, I dunno. Something more giving and helpful to others. It eventually gives out..like my knees are buckling. A hirewire act, ending in resentment and frustration. =)
I think ESFJ/ENFJ for sure. I mean, my actual type is an Fe aux, not Fe dom, and there are...Fe-type activities that don't come very naturally to me. While I am very sensitive to things like including people in group conversations and trying to make those who seem to feel uncomfortable feel more at ease (and history suggests I'm pretty good at that), I am not good at hostess-type activities...on the rare occasions I have guests I always feel awkward and either like I'm trying too hard or not hard enough. But then, I took a test recently which suggested that ESFJ was definitely the type I was trying to "imitate". Although I would potentially see myself more like an ENFJ.
I am sure that I am ISFJ-like at times too but I wouldn't say that's something I have to "imitate".
Sometimes using my Fe feels oh-so-smooth, sometimes it feels like a huge emotional and even physical effort. Depends on the situation and how I'm feeling generally.
I also have an ESTP shadow side for sure, but that comes fairly naturally under some circumstances... When I was younger I am pretty sure I came across more like an INTJ.