4. “That’s not my favorite outfit.” You critique her fashion sense.
If you think that your Japanese girlfriend should change how she dresses according to your taste, you’re wrong. Moreover, if she has a distinct style, you should know that’s how she expresses herself and that she’s proud of it. Don’t try to interfere with that. If she has one or two outfits that you especially like, let her know how great she looks in them.