I have an idea of these two functions, but I've heard that they can appear very similar, I guess especially when they are the dominant functions...... Maybe that's why I had a hard time telling whether my bf was ISFP or INTP.......
How do you find out whether someone is a primary or auxiliary use of Fi or Ti....?
I have recently noticed HOW an ENFP friend of mine uses Fi.....somehow I understood .... Hard to describe, but I always thought we were so different, even though both NFs, and I guess it's mainly due to her VALUES....I now see her value system, and that really forms the basis of her world view..... and I somehow think I find it easier to identity Fi-use in Extraverts, even though its auxiliary, but, only those I have known, tend to EXPRESS their values more often.....may just be a very subjective impression.....