Surprised, but not nearly as affronted as he should have been at being invited in by a shout through a closed door, Anakin entered Obi-Wan's quarters.
His first greeting was the quirk of his eyebrow. Which was actually Helena's eyebrow, so it must not have had the full Anakin effect. But it was as close to his usual tauntingly contemptuousness as they were going to get at the moment. So it would do.
Anakin was still taken by how un-Obi-Wan-like Obi-Wan looked in his borrowed body. Of course, Anakin must seem as equally shocking to Obi-Wan.