As he looked around, he noticed the couch suddenly turning blue...it had been brown a moment ago. The desk was in a different place...as if Jake being human had made different decor choices than he had. A few moments later, he couldn't tell as all the colors in his apartment suddenly changed...or rather, his eyes did...but at the same time, his nose and jaw began to expand into a muzzle...and a world of scents opened up to him.
He looked up at Jake...who looked almost completely human at this point, eating his sandwich. He wondered what they would do first...maybe go for a walk, or play fetch....
He wasn't aware that the machine was still working...on other humans and dogs nearby, including...