James might be brash and often careless, but if there was one thing he'd always be mindful of it was Sirius and what his friend had gone through. For a second, he was quiet, casting a glance toward Lily for a second before just standing, picking up his tea and nodding with his head for Sirius to follow him out of the room.
Lily might be his friend too, but she wasn't James and this was a private conversation. Anything about Azkaban was, and really ought not be had in front of Harry.
"So you learned to sleep that way," he said once they were in the other room. "Do you usually transform unintentionally?"