The last answer sets the most formal tone; "Hello! I was very pleased to meet you at the party last week." the rest are very casual.
horror, death, fiction (and sometimes romance). it's most likely mind bending, and psychologically thrilling. it most likely uses a lot of metaphors, and keeps you on your toes, at the edge of your seat.
example: really anything by edgar allen poe.
Unlike most animals, they're enjoyable. They don't do anything but sing til they die. They're calm, peaceful, and beautiful. Mockingbirds are nothing but amazing. It's a sin to kill a mockingbird just like it's a sin to kill a unicorn. To kill something so pure and harmless is horrible. That's why it's a sin to kill a mocking bird.
i hope this helps :^)