In your smart phone app store, search and download a QR Code reading application.
You can type in key words such as "QR Code Reader" or "QR Code Scanner".
Start your QR Code reading application, follow the on-screen instructions and use your smart phone camera to scan your QR code.
Your phone will read the QR code and either give you a specific message or direct you to a web page. You can now take advantage of the many practical uses QR code has to offer!