The value of reading Black Snake aloud is that the ! And the capital letters are louder so it sounds more fun and childish
Are there supposed to be options?
Anyhow, you use quotation marks when you're quoting another person or when you're quoting a phrase. Also, you can use it when a person(s) are speaking. An example would be..
Rosa said, "Mac and cheese is the best food on earth."
Or
Rosa said, "Mac and cheese is the best food on earth." Henry gave a look of disgust and said, "I disagree. Pizza is the best food."