I think its an Idiom. I don't see like or as. So no simile. I don't see he is something like a marshmallow. - No metaphor. I also don't see a non-human thing doing human things- the grass was dancing in the wind. My answer would be an idiom.
Hope this helps!
Answer:
Either to release stress from school by texting to someone their feelings or what happened through out the day to someone or another could be to talk to people out side school such as their mother for example
Explanation:
hope this helped! :)
Answer: parked in the driveway
Explanation: Took the test