“...He stared, yearning for one whose reflection he shared. And solemnly sweared not to be scared at the prospect of being doubly there.” The pool seemed to glow brighter for a moment or two. Everyone watched it carefully as it slowly dimmed back down to normal. “Happens whenever anypony repeats the rhyme. My guess is if nopony is directly over it, and isn’t the one saying the words, nothing happens.”