Whiteboard Movie: Argumentation with open lines of communcation

Movie
People often feel offended in discussions when people disagree with them, this causes that they stop listening and start fighting for their own opinion. QTIP: Quit Taking It Personally! Also avoid the words 'but' and 'nevertheless', it diminishes everything what is said before.  

Exercise
In this exercise you start a discussion with another person, but your have to force yourself to acknowledge the other person while avoiding words like 'but' and 'nevertheless'. Discuss afterwards how it felt for the other that you disagreed, but in a polite way.