Functions in Daily Life

Well I have a habit of picking out words in the same way you describe and I don't have Fi, so that's probably more of a Pe thing alone.

Also, when I read something, I notice myself sometimes making faces that correspond to what I'm reading, but they come off (at least to me) as being kind of unnatural and odd. And the faces I make are generally not my own reactions to what I'm reading, but rather the reactions of characters or such. For example, if a character in the book I'm reading is disgusted, then I'll kind of make a disgusted face, but I generally remain impassive if I'm legitimately disgusted while a character is not. Likewise, if a character is described to smile, then I am pretty likely to smile (at least a very small smile).

Thinking about it now, I realize a lot of my bearing/body language is altered a lot by what I'm reading at the time. If I'm at a point where the characters are tense and someone comes up and tries to talk to me, then I'm more likely to be tense and snappy whereas I'll be more polite and such if the characters/action of what I'm reading are in a similar state.

If I had to put a function on it, I'd say that's probably an Ne/Fe combination. Fe relates to the characters as other people and, in conjunction with imaginative Ne, puts me in their shoes which makes it hard to divorce a concept of myself from the concept of the characters.