YourTango, put out a list of the 15 psychological tricks to fairly win any argument.
- Maintain your calm
- Take your time listening
- Don't make it personal
- Prepare yourself to understand another viewpoint
- Ask questions
- Refrain from yelling
- Don't become defensive
- Use facts and logic
- Stay focused
- Steer clear of placing blame
- Don't provoke
- Prepare to give up an excellent point
- Keep emotion out of it
- Don't use foul language
- Be respectful
Source: YourTango