We cannot help sending out "signals" especially if we look good en femme. It is good to question our own motives though. Most of us say we are heterosexual and want nothing to do with men or attracting them. It does come with the turf however and whether we are interested or not, we need to be prepared to deal with that. Sometimes, we enjoy the attention in spite of ourselves but that is just the nature of the "beast". My advice is just to enjoy being ourselves, feelings and intentions notwithstanding. It's all about experiencing the feelings in any case.