Sam's smile turns into a grin as he punches in the commands; against their will, their bodies'll start to lighten up. It's a bit overwhelming at first — Sam certainly panicked internally a bit, when he booted it up. Orientation is easy to lose, instinct (so deeply driven in a Winchester) kicks in, and soon you look like a sad cat trying to swim in water, freaking over the sensation of losing control. But Sam's adjusted, because Sam loves a good challenge.

He offers some assurances immediately.

"If you feel like you're going to fall, that's normal. Just tell your brain you'll be okay."

Rational control. Movement with just a careful glide. He puts his hands on the control panel and shoves, suddenly floating up effortlessly to the ceiling. His hair floats just faintly off his head as he goes, gauging how Cat handles it.