I am almost through this book right now, and I have found that practicing it's techniques on Facebook of all places has been amazing.

Be kind and positive to the people you are friends with, and be sincere about it.

Find a group that talks about something controversial; Politics, current Police issues, etc etc.. Then join in the conversation, while utilizing the lessons from the book. Eliminate emotion from your responses, show respect, try to understand the other persons point of view, etc etc.

It has been really helpful to me so far, and I hope others agree.