"I can do better than that." Remus's lips thin as he looks directly at Sirius, pointing him out. Because he's always aware of where the other wizard is. "Right there. Tall. Black hair. Grey eyes." He pauses a moment because...it's been a secret for so long. But it's only fair to keep this new-to-him girl safe. "Also, if you see a rather large black dog, one that looks to possibly be a Newfoundland? That would also be him."

It feels like breaking a confidence, honestly. But it's not like he could get in trouble for being an animagus here, right?