Personification is giving human traits (qualities, feelings, action, or characteristics) to non-living objects (things, colors, qualities, or ideas).
For example: The window winked at me. The verb, wink, is a human action. A window is a non-living object.
Metaphor is when you use two nouns and compare or contrast them to one another. Unlike simile, you don't use "like" or "as" in the comparison.
Simile is when you compare two nouns (persons, places or things) that are unlike, with "like" or "as."
Imagery involves one or more of your five senses (hearing, taste, touch, smell, sight).
Repetition is when you have a word and use it more than once.