How to Activate Secret Conversation in Messenger.

1. 1. Open Messenger.

1. 1. Go into a Conversation.
2. 2. Tap the circle with an "I" in it on the upper right side of the screen.
3. 3. Select Secret Conversation from the Settings menu and a popup will ask you, "Turn on 
4.     Secret Conversations?"
5. 4. Select Turn On.