Markus was equally wary now, but did not skip a beat.  "Well, it is usually customary to give your own name before asking someone else's.  But I should blame myself for a lapse in manners; I should have introduced myself before asking something of you.  Markus, is my name.  May I ask yours?"  

The young man(they must have been the same age, Markus thought) seemed a little excited by the idea of the keyblade.  Likely, that is why he was stalking the others.