Regulus couldn't very well blurt out the first question that popped into his mind: "Are you still a loyal Death Eater?" He hadn't known Barty Crouch Jr. that well, but he'd certainly seen and heard of one of the Dark Lord's most fanatically devoted subjects.
"Well." He drew in a deep breath and surreptitiously checked his wand, not drawing it, but making sure it could be quickly drawn just in case. "It seems this is a surprise meeting for both of us. For my part, rumors of my death were greatly exaggerated. Obviously," he added dryly.