Oliver returned his hands to his pockets and decidedly did not notice the flattering colour rising in Harry's face. Or, if he did, he only noticed it peripherally.
Before he could really not notice, Harry was talking about Sirius and all traces of humour slid from his face. "Not as such, no. As I said, we've kept it to smaller topics and I was under the impression that this was a deep loss," his brow furrowed, "for both of you. I haven't wanted to pry into it if it's still raw."