Can INFJ's be the type that enjoys looking in the mirror or is this more the trait of another type? Or is this irrelevant to what type you are? I'm just asking because as an INFJ myself I like to look in the mirror and I do have an interest in what I look like. I can muse over a mirror for minutes at a time looking at my face. For me, I think that this interest comes from my interest in art and aesthetics. I like things that look nice and I seek them out in everyday life. From nature to humans I notice the beauty and actively seek it out. I like to appreciate art, both on a wall and also on a catwalk. I like to look at beautiful things, including people and because of this search for beauty I turn inwards. I'm not saying I'm drop dead gorgeous but I would say I am decent looking or pleasant looking.
When I look in a mirror I analyse myself and try to pick out faults. I think the main reason I do this though is because I have had some skin trouble including acne. I like my facial features and I wouldn't change them, but I would like my skin to be better.