Establish an objective that speaks to your dance team's aim of creating a sense of unity and purpose. Uniting your team's dancers will boost morale and performance by giving everyone a sense of commonality -- everyone will have their membership on the dance team in common, which will help create a sense of community and limit in-fighting. You may want to also establish rankings or offices to give everyone something to work toward, making sure once-yearly elections are held fairly and anonymously to choose a new captain or other officers.
Set an objective for your dance team to give back to the community. You can include language in your objective that speaks to the dance team's goal of developing a deeper understanding and appreciation of good citizenship or civic service. The objective can manifest itself with, for example, dance team performances where all proceeds are donated to your team's charity of choice.
Good sportsmanship is a must for all competitive teams, including your dance team. Set a clear objective that all members of the dance team will be good sports whether you win or lose -- this means no spite when faced with a loss, and no excessive gloating with a win. Instill in your team members a deep sense of respect for competing dance teams and humility at contests.
Whether you open your dance team membership to men and women, or you limit it to either gender, it's important that don't discriminate when selecting new dancers during auditions. Establish a clear objective to be fair and open-minded during auditions, and to judge prospective dance team members based only on attitude, technique, and ability to learn quickly, rather than on appearance or social clique.
Setting an objective that establishes a high expectation for dancers' personal discipline in practice will help your team get better and develop better technique and unity. This objective could also make the team's intent to dance to the best of everyone's ability, every time, as clear as possible.