Android's App Pinning feature allows users to lock their devices to a single application, preventing others from navigating away from that app and protecting sensitive information. To enable App Pinning, follow these steps:
1. Open the settings app and select Security & Privacy.
2. Select More security & privacy.
3. Scroll down and select App pinning.
4. Toggle on Use app pinning.
Once enabled, users can share their devices without the risk of exposing private messages or sensitive applications.