How Mark Twain Speaks to the Reader in "Huckleberry Finn"

In various spots in the novel "Huckleberry Finn" by Mark Twain, ideas and views are sometimes spoken "over the heads" of the characters. The reader understands and sees these particular points but the characters are oblivious to them.
One example of Twain speaking "over the heads" of his characters is when the ringmaster at the circus lets the drunk man ride the horse. Huck thinks that this man is a real drunk and was one of the performers playing a trick on the ringmaster. The reader understands that the drunk riding the horse is just part of the circus show. …