Most smartphones have a built-in QR code scanner within the camera app. Alternatively, you can add an app to do the same.
1. Open your phone's camera.
2. Point it at the QR code (ensure it's within the frame).
3. Wait for the pop-up link or action to appear.
4. Tap the link to open the associated website, app, or information.
If your camera doesn't scan automatically, download a free QR code scanning app from your device's app store.