What was it with professors and making their classrooms appear like something other than a classroom? If the professor wanted to simulate an outdoor environment, why not just hold class outdoors? That seemed like the more logical option to Indigo, but he wasn't in charge so whatever. He simply gave the professor a polite nod in greeting and a "Good morning, professor." As for where to stand, none of Indigo's friends were present yet so he stood by himself.