Once Serenus slid from their booth, Gaius followed, also giving Remus a reassuring smile. Then he drew in a deep breath and started toward Regulus, who seemed to have drawn in on himself as if there were no one else in the room. He moved to Regulus' side, still studiously facing away from Sirius' portrait.
"Hullo, Regulus," he said softly, reaching out to touch his friend gently on the arm. "How are you? Mind if Serenus and I join you for a bit?"