Successful people, unlike unsuccessful people, believe in making opportunities. They can start at the most abysmal bottom position ever but they know methods of strategizing and working smart as to not remain on the bottom tier for long. Successful people just do not aimlessly do busy work but they choose the assignments that would put them in the "public eye" so to speak.
Successful people furthermore have a job plan i.e. where they are going to be in the future, whether it is one or five years from now. They also will NEVER remain in jobs that do not utilize their intellectual assets. They do not believe in being loyal to a job just for the sake of pure loyalty. They are in a job because of how it will benefit them in the LONG turn.
Successful people are also selfish in a good way. They realize that putting themselves first is the SMART thing to do for the company and for themselves. They refuse to let others such as coworkers and superiors use them for the latter's benefit. In other words, they are NOT doormats for the sake of the coworkers and superiors. They have boundaries and are not hesitant in clarifying the issue.
Successful people know to broadcast their assets to their superiors. They realize the benefits of self-promotion in order to advance their careers. They are adherents to the fact that self-promotioin is savvy for if one does not indicate their good points, no one else will. Conversely, successful people gladly acknowledge their mistakes and do not believe in passing the buck.
Successful people also think big and beyond the box. Mediocrity is a four letter word to them. Leave average to those who just meander through life. Successful people visualize big. They ignore naysayers who purport that their dreams are too grandiose and unrealistic! In essence, successful people DO while unsuccessful people just TALK and DREAM!