KDude expains it in part. She is definetly not an F. And she's not trying at all to be cool. Actually, she comes above all as the duty follower. So an SJ. Which means that she's an STJ. Very square, non-nonsense and disciplined. Now is she an ISTJ or an ESTJ? More ESTJ, she's easily agressive and energised by contact it's particulary visible in interview. She doesn't especially seem to repress Ne, but more Fi, she's very sick and rude, never try to make people confortable. In her relatiuonship with the Fi-dom Robert Patinson, it's pretty visble how different they are.I don't know what type she is, but I can see where they're going as far as being a weak-F type. I don't know why anyone sees Fe especially. She doesn't naturally wear emotions on her face. And I don't think she's merely trying to be cool.
[youtube=OlZ8eyLpvLk]Kristen Stewart Junket Interview: Breaking Dawn Part 1[/youtube]