read somebody's mind/thoughts

read (one's) mind

To know what one is thinking. You read my mind—that's exactly where I want to go to dinner! I'm sorry, but I can't read your mind. You need to tell me these things.
See also: mind, read

read (one's) thoughts

To know or infer what one is thinking. You read my thoughts—that's exactly where I want to go to dinner! I'm sorry, but I can't read your thoughts. You need to tell me these things.
See also: read, thought
Farlex Dictionary of Idioms.

read someone's mind

Fig. to guess what someone is thinking. You'll have to tell me what you want. I can't read your mind, you know. If I could read your mind, I'd know what you expect of me.
See also: mind, read
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

ˌread somebody’s ˈmind/ˈthoughts

(informal) understand what somebody is thinking, feeling, planning, etc: I can’t read your mind! If you don’t tell me what’s worrying you, I can’t help you.
See also: mind, read, thought
Farlex Partner Idioms Dictionary
See also:
  • read (one's) mind
  • read mind
  • read someone's mind
  • have (one's) mind on other things
  • have your mind on other things
  • make mind up
  • make up mind
  • make up one's mind
  • make up your mind
  • Make your mind up