Hold the device over the NFC token to scan an NFC checkpoint you have already configured. Once you have scanned the checkpoint, a message will appear below the checkpoint indicating when a user did the last scan.
Note: The NFC antenna is located in a specific spot on the device. In some cases, moving the device over the top of the NFC token may be necessary to scan it.
Due to the limitations of iOS settings for NFC, iOS users MUST hit the 'Scan NFC' option on the phone