A simile is a figure of speech comparing two unlike things, often introduced with the word "like" or "as". It takes the form of:
X is (not) like Y
X is (not) as Y
X is (not) similar to Y
Examples of simile:
He fights like a lion.
He swims as fast as a fish.
He slithers like a snake.
"My dad was a mechanic by trade when he was in the Army, When he got the tools out, he was like a surgeon."

Unlike simile, metaphor (from the Greek language: meaning "transfer") is language that directly compares seemingly unrelated subjects. It is a figure of speech that compares two or more things not using like or as. In the simplest case, this takes the form:
X - is - Y
Examples of metaphor:
All the world's a stage,
And all the men and women merely players;
They have their exits and their entrances;
(William Shakespeare, As You Like It , 2/7)

Personification is a figure of speech in which human characteristics are attributed to an abstract quality, animal, or inanimate object.
Examples
Notice the use of personification in William Blake's poem below:
Two Sunflowers Move in the Yellow Room.
"Ah, William, we're weary of weather," said the sunflowers, shining with dew.
"Our traveling habits have tired us.
Can you give us a room with a view?"
They arranged themselves at the window and counted the steps of the sun, and they both took root in the carpet where the topaz tortoises run.
William Blake
(1757-1827)

Hyperbole is the use of exaggeration as a rhetorical device or figure of speech. It may be used to evoke strong feelings or to create a strong impression, but is not meant to be taken literally. Hyperboles are exaggerations to create emphasis or effect.
Examples
Examples of hyperbole include:
• The bag weighed a ton.
• I was so hungry; I could eat a horse!
• She's older than the hills.
• I could sleep for a year; I was so tired.
• He's filthy rich. He's got tons of money.
• I've