If your QR code scans successfully but you have trouble with tapping your dot, check to see if your device is compatible.
The list of compatible phones can be found here.
Please note that even if a device is not NFC compatible, you can still use your QR code to share information.
All smartphones are able to scan the QR code on the back of the dot.cards. Additionally, a custom QR code is available on your dot.Profile as well.