"Oh good." Rogue clicks her pen, and starts scribbling down notes. Her classmate is eating some sort of rock, and rather loudly. Rogue can't help but be distracted. Having heard the last bit of Spider's speech, she quickly writes a note and passes it to Envy.

I'm Rogue. Who are you and what are you eating? - R

She knows it's not polite, and her ma would be very disappointed, but Rogue just has to know.