Listen to the news every day. Listen many times.
Not the news on a screen or in a newspaper but the news of your body and mind.
This is the most important news.
What is happening right now?
Observe how your actions and speech affect your mind.
Observe how your mental states condition your actions and speech.
This is how we investigate the law of kamma in every day life.
This reflection by Ajahn Jayasaro is from the book, From Heart and Hand, Volume One, (pdf) p. 17.