Answer:
Compare two things together using like or as which would be a simile or don't use like or as and it would be a metaphor. You could give a non-living thing human characteristics which would be personification. You also could over exaggerate something which would be an hyperbole. Really it depends on the topic, if you can't figure it out I suggest looking up figurative language examples and trying to come up with figurative language that way.
Hope this helps!