<human>:  How to use PS4 second screen?
<bot>:.
3. Sign in to your PSN account.
4. Log in to your profile on your PS4.
5. Select Settings on the PS4 dynamic menu.
6. Select Mobile App Connection Settings in the PS4 Settings menu.
7. Select Add Device on the PS4.
8. Enter the 8-digit code on the Second Screen app on your mobile device.
9. Tap Second Screen on your mobile device.