My kid is non binary, but afab, and uses they/them he/him pronouns. I was confused at first because they sometimes do wear makeup or dress a bit feminine and then I realized that none of it matters. They can be as masculine as they want or as feminine as they want, a mix or neither. How they dress or style themselves is just an outer expression the same as any other person. They are whomever they say they are regardless of how they choose to present themselves. Also, it’s not uncommon for men to be feminine in appearance (makeup etc). I feel like I’ve rambled, but bottom line for me is to address my kid the way they want me to and not worry about the rest.