Even when you're not trying to get one over on someone, it can be useful to keep the truth to yourself. Or conversely, to not know why people are lying to your face all the time. This week we'll tell you the whole truth about not telling the whole truth. Including the story of a guy who learned to lie for the first time in his life at age 29.

• Ira talks with a guy in Chicago named Josh who likes to spend time going bird watching. But one day, Josh was out in a park with his binoculars and he discovered something he definitely did not want to know about. (6 minutes)
• Act One: Michael Leviton was raised in a family who encouraged him and his siblings to tell the truth all the time. They believed it was better to be honest and work things out. Even when it was uncomfortable. But as Michael tells Ira, when he became an adult, he discovered that the world his parents created had its limitations. (19 minutes)
• Act Two: Producer Zoe Chace tells the story of a community college student named Demetrius who seemed like he was doing exceptionally well in school. But as Zoe followed Demetrius over a semester, she discovered that there were things about his academic past that he had kept a secret. And not just from her. (20 minutes)
• Act Three: Growing up, producer Stephanie Foo was the favorite child of her family in Malaysia. Particularly of the matriarch of the family who everyone called "Auntie." But as an adult, Stephanie found out the complicated truth about why she was the family favorite. (13 minutes)

Transcripts are available at thisamericanlife.org