"I'm bored."
"Aren't we all."
He absentmindedly charmed a log from the fireplace to bounce against Peter's head (Peter didn't appreciate it and Remus cast a quick shield charm).
"Quick, find a topic of discussion."
They were silent, much to Sirius' dismay. He rolled his eyes. "Fine. We'll revert to usual conversation–"
"Excellent! Her eyes seemed even more green than usual today . . ."