Draco would have been happy to offer his guest the first go, but Fletcher did seem to be holding back a bit, so far. Alright, he would go first.
He moved around the man in a slow semi-circle, considering his options. He truly hadn't decided exactly what he wanted to do to him just yet, but after a moment he went for his knife, rather than his wand. With a practiced movement, he slashed both of the man's cheeks in quick succession, enjoying the strangled cry of pain that elicited. He wiped the flat of the blade against the man's neck, enjoying the way he shuddered in anticipation of it slicing open his throat, but Draco left the skin of their victim's throat unbroken. For now.
Stepping back, he smiled at Fletcher and gestured with the knife to indicate his turn.