Board Thread:Questions and Answers/@comment-1996340-20140630080929/@comment-92.238.19.134-20140713220244

There's this video: https://www.youtube.com/watch?v=fi8XS77yKtw (I found it from the http://codegeass.wikia.com/wiki/Thread:12755 thread)

Showing the masked rider responding to C.C., as opposed to the one I watched where C.C.'s hair just flutters before it plays the ending theme. The fact that he responded is probably the biggest hint?