Why? The four preferences interact in a dynamic pattern to determine your type- it is not just a sum of the four parts. I’m a perfect example of this: one of my tendencies has more out-of-preference than in-preference facets. NOTE: You cannot simply tally your facets to determine your MBTI type. It would mean that you’re an introvert with some extroverted tendencies. What does this look like? Having a lot of friends and preferring to learn by doing and talking, while also avoiding initiating conversations, being selective about who you share your personal feelings and thoughts with, and having a calm demeanor. So perhaps you’re a gregarious, active introvert, which would indicate that you have three “in-preference” facets (under introversion) and two “out-of-preference” facets (under extroversion). So while you have a general natural leaning toward extroversion or introversion, you also have more intricate preferences within these areas.