What is the best way to start your story?

Just curious as to what you guys think the best way to start a story is. For example in the first chapter or the first 3000 words of a new book what are you hoping gets covered?

Do you want a bit of humor, do u want backstory, do u want the book to take its time establishing the setting or do you want it to jump right into it. Just wondering what really hooks u in and what turns u off from a new book.