I guess in comparison I come across as rather contemplative and thoughtful (not that she isn't, lol), with occasional short bursts of enthusiasm or energy. Like I said, I don't say a whole lot. I perhaps come across more NT-ish than NF-ish (for example, comparing myself to my talkative INFJ friend), but really it depends on whose company I am with - this stuff can be rather relative. To give you some perspective, about 7 yrs ago a male INTP thought I was the same type as he.
If I'm on one end of the continuum and my talkative INFJ friend is on the other, a 3rd INFJ I know is closer to my end, a 4th INFJ is pretty much smack in the middle, and a 5th INFJ is kinda in the middle too.