"You are an unusually astute reader," he said to me.

At the end he provides a surprise that will catch the most astute reader off guard.

They're very astute readers of body language, as Nim showed.

Most counts of these violations number them between four and six; however, up to 43 have been noted by astute readers.

The astute reader will have figured out some of the characters in today's essay.

It doesn't take an especially astute reader to see all this as a metaphor for books themselves, which also grant access to other minds.

Astute readers will find the 12 apostles in the characters he describes.

The astute reader will find much more in the text than is overtly commented upon.

The Bird Man was an astute reader of signs given off by people, as well.

She was also an astute reader of other important philosophers of the time.