Plan each point from their perspective. Turn as many of your I's (meaning you personally and your company) into you's as you can. For example, replace 'I think' with 'Do you think' or 'Wouldn't you agree', and 'I want' with 'Wouldn't you want?' This brings the person you're negotiating with more personally into the discussion.
4. Fair
If you clearly have the upper hand, and the other party is vulnerable, don't be ruthless. This is not being weak - it demonstrates real leadership and is ethical. Besides, you may want to deal with the person again in the future.
And finally,
5. Silence
Silence is golden. Think of how you hate awkward silences. The state often takes over when both parties have spoken, and a concession is due. Learn to wait out the silence to your advantage.
Written by Debbie Mayo-Smith, One of New Zealand's most in-demand speakers, trainers and bestselling authors. Debbie works with companies that want more effective staff. For more tips and business ideas sign up for her free monthly newsletter.