Literally cover to cover.
...the copyright page. I like to see if it has the one sentence summary. (Have you ever tried writing one of those? I was a LOT harder than I thought it would be!) I also like to see if it has the genres listed.
...the dedication page. I wonder who are the people the book is dedicated too. Who are they in the author's life that get a book dedicated to them. I want a book dedicated to me. Just sayin'.
...the table of contents. Although not in detail. I'm afraid one of the chapter titles might be a spoiler.
...the story. Duh!
...acknowledgements. In one of Liana Moriarty she wrote something like "I want to thank my husband for sleeping beside me in the dark even knowing how my mind works." So true Moriarty, so true! Bless him for that! But if I hadn't read the acknowledgment I wouldn't have that little nugget to hold on too and laugh about.
So my question that will change the world:
Do you read a book cover to cover?
You never know what gem you might find between the covers.