Being polite to other employees. You'll likely make new friends at work, but be polite to everyone you work with. Not hiding problems. If something comes up in your personal life that affects your work, tell your boss about it. But don't share it with all of your co-workers.
Education often is the key to moving up in the working world.
Some companies will train you so you can advance within that company. Or you can take classes at local colleges in the evening or on weekends. Financial aid often is available to help pay for such courses. If you have children, you are responsible for finding child care. You may want to ask family and friends to help out.