During your foray through the auto show (or your Google search for "Hot auto show chicks") you might notice that quite a few women are wearing wedding rings. Surprise! Some of us are married ladies!
Some of us are married, yes, but some of us wear what we call our "man-deflectors." Also known as "fly swatters" these faux wedding sets are meant to dissuade invitations to dinner/drinks/your hotel room. (It's not just models who do this, by the way. Many women pull this trick when they just don't feel like being bothered at work, dinner or a bar.)
Wearing a man-deflector is really a win-win situation. We are both spared the discomfort and embarrassment of rejection. Do you like being rejected by a beautiful woman? I doubt it. We don't really relish doing the rejecting, either. I don't think most people enjoy making others feel bad if they can help it, and no matter how gently put, rejection feels bad.
Don't take the man-deflector thing personally. When we put it on, it means we're not in the mood to entertain offers from anybody, no matter how exceptional of a human being you may be.
Of course, a wedding ring, real or not, does nothing to deter the real creeps who don't care one way or another and will hit on you come hell, high water, or well-placed subtle symbol.
The point here? If you see a wedding ring, please back off. Real or not, it translates to "No."