[Maybe it's because Syaoran's been so sensible in his response to this whole situation, or more likely because Ciel doesn't like the idea of a perfect stranger walking around with any knowledge of his past, no matter how peripherally it's experienced, that he plops down besides the other boy, leaving plenty of space between them.]
I suppose I should introduce myself, in any manner. I'm Ciel, Earl Ciel Phantomhive.