borrow a page from (someone's) book

To do something in the way someone else would do it; to behave or act like someone else. I think I'm going to borrow a page from your book and start going for a run first thing in the morning. Our youngest son was always very placid as a baby, but now that he's getting older, he's begun borrowing a page from our older boy's book. I'm glad to see you're borrowing a page from my book when it comes to preparing your tax returns early.