Stone was working on something, probably something to try and impress Dr. Robotnik. He was quiet. He didn't pay too much attention to anything around him. He was just thinking hard on the work, Having his usual professional demeanor. he didn't seem to notice the docter himself enter.

After a bit, The agents eyes finally shifted to him, Robotnik. He paused for a moment..before standing up and greeting him.

"Good morning, doctor." Stone didn't expect a 'kind' response from Robotnik...