o, for example, a person with a personality type of ISFP has a dominant function of Introverted Feeling. More specifically, Feeling in the dominant function, and its attitude (or direction) is Introverted. A person with this personality type is likely to be most attracted to, and fit best with, a person that has Extraverted Feeling dominating their personality. Extraverted Feeling dominates the personality types ESFJ and ENFJ. We therefore determine that the ISFP's natural partner is the ESFJ or the ENFJ.