So with the poems on the second(?) day, I noticed some odd occurences. Randomly, Sayori pops up from the bottom when you click words (I think they're random really, since I tried the same word and failed to get her to pop up on the second try). It really only shows her hair but it's kinda odd. I don't see anything mentioning this, but if there is can you link me to it?
Here's a gif of what happened.