Английский словарь американских идиом - take note of

or take notice of {v. phr.} 1. To look carefully at; pay close attention to; observe well. * /A detective is trained to take note of people and things./ 2. To notice and act in response; pay attention. * /Two boys were talking together in the back of the room but the teacher took no notice of them./ * /The principal thanked everyone who helped in the program, and took note of the decorations made by the art class./