What is impression Management?
It is the effort to control and or influence other people's opinions and perceptions.
This is seen very often. It could be as simple as a friend talking about how good of a person their friend is so that they could hangout or it could be a person talking about how skilled and right they are for a job in a job interview so that they might get hired. Also, even the way a person dresses could be to influence other people's opinion of that person.