A snippet from a prompt at the Gila Writers Group. Maybe something to use in a short story or . . . ?

The Cytherians, by necessity, are a shiny sort of people. The planet is very near its sun. The surface is very hot–too hot for more than a brief visit from the underground cities of Cytheria. With a thin atmosphere, the UV rays could be fatal. But at times, they have reason to emerge in daylight hours. When they do, any exposed skin must reflect all rays which touch them. Of course they could wear protective garments to do the same, but they evolved before resources to create them were developed. So most continue to rely on their nude bodies, wearing clothes only for ceremonial occasions.

The mirrored surfaces pose a challenge when meeting one another face to face. A reflection of oneself is what each sees on the other. Only the distinctive shape of the other’s head, torso and limbs differentiates the image seen. Words and gestures make the most important tools for connecting, for communicating. But in that respect, perhaps they’re not so different than their human counterparts on Earth. Body language can be important even when it’s a mirror of oneself, but words and gestures are more important.