20. Stimulate fear on your part so that the other party will think you are tense about negotiating.
21. Gain information about an opponent’s negotiating position by cultivating his or her friendship through expensive gifts, entertaining, or “personal favors.”
22. Pretend to be furious at your opponent.
23. Make an opening demand so high/low that is seriously undermines your opponent's confidence in his or her ability to negotiate a satisfactory settlement.
24. Guarantee that your constituency will uphold the settlement reached, although you know that they will likely violate the agreement later.
25. Gain information about an opponent’s negotiating position by trying to recruit or hire one your opponent’s teammates (on the condition that the teammate bring confidential Information with him/her)