read someone's mind

Idioms  

1. Discern what someone is thinking or feeling, as in He often finished her sentences for her, almost as though he could read her mind. [Late 1800s]

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Example Sentences

Smooth: I’m wary of trying to read someone’s mind too much, but he certainly did seem to want the world to perceive him as someone who didn’t have a childhood, as a “Peter Pan.”

From Los Angeles Times

Chang also emphasized that his approach cannot be used to read someone’s mind—only to translate words the person wants to say into audible sounds.

From Scientific American

It is picking up on subtle, fleeting cues in order to read someone’s mind—and there is almost no other impulse so basic and so automatic and at which, most of the time, we so effortlessly excel.

From Literature

Stands, which often look like people, can only be seen by other stand users, and possess wildly different abilities, like turning things they touch into bombs, or being able to read someone’s mind by opening their face like a book.

From The Verge

It was like trying to read someone’s mind by dissecting their cerebral cortex.

From Literature