Several years back, I would have answered something like you have answered. But during a spirituality exercise at one time, I decided that I would allow anyone to stare at me who wanted to, and I wouldn't project upon them any preconceived notions about "why" they were staring at me.
Also, I wouldn't look away NOR stare back. Just act natural and really not care at all. But the point of the exercise was to ... allow other people to enjoy the gift of my beauty without interfering.
I know that may sound like a horribly conceded thing to say...but the thing is...I'm a pretty girl, yeah...but its not my outer prettiness that people stare at. Its my light within. I have always known this but its something that, at face value, people don't understand. They just think that no matter how bright my inner light is, people aren't looking at that, they are looking at my prettiness. I know this is not the case, for many reasons. But of course I can't prove it to anyone but myself....all I know is that I shine bright and I won't be put off just because someone wants to admire that brightness. I will let them, and if I catch their eye in the process, I'll not drop my gaze in fear of giving them a gift that only I can give.
But again....just ramblings....nothing really relative, its just, for me, this experiment was a spiritual one...but now that I have practiced this for a few years, I realize it is also an exercise in understanding intimacy.