It made sense, and for some reason the Master felt far more trusting of this version of the Doctor. He took the hand and shook it. "Agreed," he said, then gave a twisted grin. "For the moment, at least."
He held the Doctor's hand a second or two longer than was strictly necessary, ridiculously grateful for the relatively friendly contact. Then he shook that feeling off quickly, along with the Doctor's hand, and stepped away, shoving his hands in his pockets and gazing around at the deserted street.