Personification is a figure of speech that gives a non-animated object or a non-human being, such as an animal, an element of nature, a thing or an emotion, human attributes like pondering, thinking, writing, talking, among others. The idiom "sly as a fox" is not an example of personification because even though humans can be "sly", it is not the only living being that can be crafty or tricky: some animals can be sly too.
