I just gradually changed clothes and the styles I wore. I still have "girl" socks and "women's" underwear because I just haven't phased them out. (Partially because they were fine, partially because I am losing weight, and mostly because I am horribly cheap). But, I would just slowly start incorporating different looks into your daily style if it makes you feel better. Doing it gradually also makes it seem less drastic those around you and most likely, they won't notice. No one in my last semester of college even batted an eye when I, at the end of the semester and at graduation, was wearing just men's clothes, binding and had short hair. Believe it or not, very few people actually notice clothing changes in others, especially if it is slow.