Good teammates are disciplined away from the game, too. They live right and are good people. They don't do anything that would embarrass their teammates, coaches or parents. If the team is traveling, they show good manners in hotels and restaurants. People are complimenting them, not shunning them.
Teamwork comes down to attitude.
The biggest skill you have is not passing, skating or shooting, but how you use your head and heart. You should play because you love to compete. Working hard as a team to accomplish the unthinkable is the best feeling in the world. When you are really a team that works together and cares about each other, you know a special feeling that is unique to team sports. After your biggest win, you can just look at your teammates, smile and appreciate what a wonderful feeling it is.