Open a QR code generator
Enter the Rickroll URL: https://www.youtube.com/watch?v=dQw4w9WgXcQ
Generate the QR code
Download or save the QR code image
Print or display the QR code
Test the QR code with a phone camera
If you want to draw it by hand, use the QR code image as a grid reference
Draw the square border first
Copy the black and white module pattern exactly
Keep the three corner finder squares accurate
Preserve the alignment and spacing of every square
Scan the finished drawing to verify it works