Successful negotiators often perform well by using these tactics.

Desire to Achieve a Mutual Agreement
This is paramount to success. Both parties must want to develop a mutual (verses one-sided) agreement. As discussed earlier, negotiators temperament or even circumstances will play a role in obtaining a win-win agreement. Both parties need to consider and mutually respect the other viewpoint, even if it is a point to be negotiated.
Take Breaks
Breaks were discussed earlier and may be for physical needs including standing and stretching after negotiating for a long period. Breaks are also needed for mental reasons to consider progress both positive and what needs improvement.
Stay Focused
Having the desire to reach an agreement, reviewing a predetermined agenda, mutually deciding the order of topics to discuss and taking breaks will contribute to keeping the parties (individuals and\or teams) focused. Having a plan of how to react when a new and unexpected topic is introduced, or when a deadlock occurs, will help keep the negotiators focused. If a team is involved, be sure everyone knows their role and responsibilities at the negotiating table.
Find Creative, Mutual Agreement
This exhibit started with mutual agreement, and coming full circle it is concluding with mutual agreement. The addition is to be creative and flexible. Asking the three critical questions helps uncover potential solutions that may not have been previously considered.