To get a QR code for Google reviews, first, navigate to the Google Maps listing of your business. Then, click on the "Share" button, which typically appears as a small arrow pointing upwards. From the options that appear, select "Copy link" to copy the URL of your business listing. Next, paste this URL into a QR code generator tool like Digiphy, which you can find online for free. The tool will then generate a QR code based on the provided URL. You can download the QR code image and use it in your marketing materials or on your premises to encourage customers to leave reviews.