Lately SupremeEmperor has noticed drawbacks to being perfect, namely that people (of the female variety) are expressing interest in him. Now since SupremeEmperor is very picky (not to mention gay) he seeks a way to express his lack of interest in them, ideally in a semi-polite fashion and without outing himself. Note: None of them have directly stated they want SupremeEmperor, however, it is fairly obvious.
Direct, honest and polite. Don`t flirt, be a little watchful over behavior that could be interpreted as flirting, like long hugs, prolonged eye-contact. Casual touching. If you start getting the sense that this chick is into you, avoid all casual touching, avoid eye-contact other than what is polite and friendly. Even avoid small-talk if you can. Most of the time, a girl will then get that you are not interested. If a direct come-on, just say that she`s a pretty/wonderful/attractive girl, but you aren`t interested as you have someone else on your heart/mind. Usually that works. And if that doesn`t work either, you have a stalker! Then politeness can be abandoned for "Look, I am really just not interested".