7 Tips for Masterful Negotiating

1. Listen Before you Speak.
2. Embrace Your Fear.
3. Avoid Storytelling.
4. Study Up.
5. Ditch the Dog Metaphors.
6. When All Seems Lost, Gain Something Else.
7. Remember: You're Already a Pro at This.

Source: http://www.inc.com/guides/2010/04/tips-for-great-negotiating.html