You treat people with the full respect they deserve. People can typically spot a fake very quickly so, if you act in a manipulative way, you are likely to be smoked out so that you become ineffective. There's no substitute for believing in what you say. If you say teamwork is important, then it means you really have to treat people with integrity and respect. Number three is having a sense of who you are and what your aspirations are.
Aspirations change over time.
Your aspirations in your first job ought to be different than they are in your third job. In all cases, you ought to have a sense of where you want to be in two, three, four or five years - not in the context of money and stature so much as accomplishment and challenge. Then you can translate your goals into the experiences that you ought to start having now in order to position yourself for the future. It's interesting how many people think you really can fool a corporation over a long period of time. You have to be clear about what your expectations and your capabilities are.