Echo effect or Mirror effect

What kind of friends do you have? What kind of employees? What kind of colleagues? So many times in life we get from others EXACTLY WHAT WE EXPECT!
In short the way we see people affects the way we treat them and the way we treat them affects the way they perform. This is called Pygmalion Effect (sometimes called the “echo effect” or the “mirror effect”).
Expectations can influence behavior: therefore, a manager may get better staff performance if he expects better performance. What we see reflected in many objects, situations, or persons are what we put there with our own expectations. We create images of how things should be, and if these images are believed, they become self fulfilling prophecies.
The feelings and tones which surround us can be changed if we work to change them by sending out the kind of signal we want reflected or echoed. We all have an audience of individuals and colleagues whose day, including their moods, feelings, and dispositions, will be influenced by the way we start it.
The Pygmalion Effect has met the test of scientific analysis.
       •    A study showed that experiments could raise the IQ scores of children, especially on verbal and information sub-tests, merely by expecting them to do well.
       •    A study showed that worker performance increased markedly when the supervisor of these workers was told that his group showed a special potential for their particular job.