Good team players are willing to deal with all kinds of problems in a solutions-oriented manner. 

They do not dwell on problems, blame others or avoid problems. Team players get problems out in the open for discussion and then collaborate with others to find solutions and form action plans....

Effective team players deal with other people in a professional manner. They show understanding and the appropriate support of other team members to help get the job done. They treat fellow team members with courtesy and consideration.

Good team players are active in sharing information, knowledge, and experience. They take the initiative to keep team members informed.

Good team players are fully engaged in the work of the team and do not sit passively on the sidelines. They take the initiative to help make things happen, and they volunteer for assignments.

Teams often deal with change. Good team players adapt to ever-changing situations without complaining.

A flexible team member also considers different points of views and compromise when needed.

Teams need people who speak up and express their thoughts and ideas clearly, directly, honestly, and with respect for others. 

Teams need team players who listen first and speak second. They need players that can absorb, understand, and consider ideas and points of view from other people without arguing every point.

Cooperation is the act of working with others and acting together to accomplish a job.

Good team players figure out ways to work together to solve problems and get work done.