Hand signs!

The floor looked like it was made of polished black glass, the kind that reflected every little detail on its surface. It was almost mesmerizing to look at, the way the light seemed to dance and ripple across its shiny surface. Above, a virtual sky shone in all its artificial glory, casting a soft glow across the chamber and illuminating everything in a surreal, dreamlike light.

Despite the lack of natural light, the chamber was not dark. The virtual sky provided a soft, ambient glow that cast everything in a pale blue light. The students could see each other clearly, and the intricate details of the floor and walls were visible as if they were in broad daylight. They could even make out the dust particles in the air, illuminated by the virtual light and swirling gently in the currents.