Anakin shouted, “Open,” at the door. He couldn’t very well open it from his bed and getting up was a production. He was supposed to stay in bed unless he had someone’s assistance.
In bed – which he was starting to view as a prison. He’d spent so much time lying down he was seriously contemplating if humans could sleep standing up, for future application when he was no longer confined to this building. He might never want to be in a bed again.
He’d been watching TV, nothing in particular, channel surfing, when Obi-Wan walked in, and Anakin immediately turned it off in favor of interacting with his friend.
“Are you going to take me for a walk, too?” Anakin was well aware how that made him sound like a sad puppy, he wouldn’t deny it.