To enable fingerprint or face unlock for added security and quick access to your chats, you would typically need to follow these general steps:

Ensure your device supports biometric authentication: First, make sure your device has the necessary hardware and software capabilities to support fingerprint or face unlock. Most modern smartphones and tablets have these features built-in.

Set up fingerprint or face unlock: Go to your device's settings and look for the "Security" or "Biometrics" section. Within that section, you should find options to set up fingerprint or face unlock. Follow the on-screen instructions to enroll your fingerprint or scan your face.

Configure app lock: After setting up fingerprint or face unlock at the system level, you'll need to enable app lock or app-specific biometric authentication for your chat application. This step may vary depending on the app you're using. Look for options like "App lock," "Privacy settings," or "Security settings" within the chat application.

Enable biometric authentication for your chat app: Within the chat app's settings, find the option ingb whatsapp to enable biometric authentication or unlock with fingerprint/face. Enable this feature and choose the appropriate biometric method (fingerprint or face) based on your device's capabilities.

Test the setup: Once you've enabled biometric authentication for your chat app, exit the app and try reopening it. You should now be prompted to authenticate using your fingerprint or face. After successfully authenticating, you'll gain quick access to your chats.

Remember to keep your device's software up to date and follow best practices for securing your personal information. Biometric authentication can provide an additional layer of security and convenience, but it's important to use other security measures like strong passwords and device encryption as well.