1. Never laugh at others: Good team members should never make a joke of other team member's point of view. It will create a negative environment and will result in conflicts.
2. Never discourage team members: If people in a team always discourage each other, the whole team lose confidence and become unable to do well in the assigned work.
3. Never say impossible to things: Team members should never say that things are impossible or we cannot do that. The team members should not have a negative state of mind. Moreover, these type of people in a team lead to failure of whole team.
4. Never put burden on one person: In a team, every person should equally participate. Team members should never put the whole burden on one member or the group leader.
5. Never say bad things about organization: Team members should respect the organization's rules and policies. They should never say anything bad about their organization.
6. Never say I can do everything: A good team member should not think that he/she can do everything. When somebody think that he/she can do work without other members help, it destroys relations as well as work capacity of people.