Push notifications help you stay up-to-date on recent Periscope activity. Push notifications are turned off by default, but you can choose to receive a push notification when: 1. Someone you follow goes LIVE 2. Someone you follow on Twitter goes LIVE 3. Someone shares a broadcast with you 4. A broadcast is suggested to you 5. A user follows you 6. Someone adds you to a group You can learn how to manage your push notifications here.