Formal:
* The historian spent hours perusing ancient manuscripts, searching for clues to the lost civilization.
* After perusing the contract, the lawyer advised his client to make some revisions.
* The judge perused the evidence carefully before making his ruling.
Informal:
* I spent the afternoon perusing the bookstore, looking for a new novel to read.
* She was perusing the menu, trying to decide what to order.
* He perused the news website, catching up on the latest events.
Figurative:
* The artist perused the city streets, absorbing the sights and sounds into her work.
* Her mind perused the memories of her childhood, searching for a forgotten detail.
Tip: "Perusing" implies a more deliberate and thorough examination than simply "reading" or "looking." It suggests a careful and focused attention to detail.