...
Ensure your app is the background of your phone and not closed.
Go to Exposure History Screen -> Check for Exposures (Available on PathCheck app >= 1.0.5)
Note: Requests for Exposures is capped at 6 per 24 hours.
Review your Exposure logs in the Settings section of your phone. (Instructions)
iOS: Settings → Exposure Notifications → Exposure Logging Status → Exposure Checks
Android: → Settings → Exposure Notifications → Exposure Checks
If you are not seeing logs on your phone, check with Apple and/or Google that your Public Key is accurate.
...