On this page you willl find a demo QR-code. You can scan the code with your telephone (cell phone).
Open your camera app as if you are going to take a picture. Aim at the QR code. After a few seconds, a message will appear on your screen.
Click on that link.
The data contans only demonstration data.
In reality your QR-codes will look like:
You will see the following information on your telephone screen