Sweet and Demure. You seem sensitive and vulnerable, or coy, or shy. Your sweetness is seductive and your demure demeanor is disarming. If you are female, an alluring femininity may flower and passively but powerfully attract the object of your affection.
Surreal. You offer intriguing illusions or an escape from reality, possibly in a romantic fantasy world that invites the one you desire to depart the drudgery of daily life. Perfumes or colognes, glamorous clothes, or creative cosmetics might add to your alluring air.
Soulful. You seem able to share deep feelings, or a higher consciousness. You seem a safe harbour for one's soul. You seem like someone who could connect on a soul level. You might show a "soulful" look in your eyes as you glance at the one you would flirt with.
Self-sacrificing. You offer to serve some needs of the one you desire, putting them first and yourself last, even something as simple as offering your seat on the bus, or giving of your time to help someone with something. You may tend to lose your self-identity when you identify yourself too strongly with the object of your affections. (Beware that your willingness to make sacrifices might set you up as an unwitting victim. It is sweet to sacrifice your self-interest, but self-destructive to sacrifice your self-respect.)
Spiritual. You may seem like a spiritual guide to someone; or you may see your salvation in the one you desire.