* Formal: "The professor asked us to peruse the assigned reading before the lecture."
* Casual: "I love to peruse the aisles of the bookstore, even if I don't buy anything."
* Descriptive: "She perused the menu with a critical eye, searching for the perfect dish."
* Figurative: "As the train pulled into the station, she perused the faces of the passengers, hoping to spot a familiar one."
Key takeaway: "Peruse" is often used to describe a careful and deliberate examination of something, usually involving reading or looking at something closely. It can be used in both formal and informal settings.