How does personality influence effective communication

Our personality affects everything we do, and especially the way we communicate with other people around us. If we are shy and introverted by nature, then there is a likelihood that the communication with another person might be affected negatively.
If we are loud and annoying by nature, not many people are going to want to communicate with us; on the other hand, if we have a bubbly personality, then we will attract many people who will want to have some kind of a communication with us, which will probably be effective due to our nature.

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.