1). Simile is a direct comparison of one thing with another, explicitly announced by the word like or as.
2). Metaphor is an implied comparison without a signal word to evoke similarities. In it, person, and object, or an idea is imaginatively transformed. An example can be found in Vachel Lindsay's To a Golden-Haired Girl in a Louisiana Town You are a sunrise, If a star should rise instead of the sun.
3).Personification is the granting of human attributes to things that are not human. For example, Ah, William, we're weary of weather," said the sunflowers, shining with dew.