- Download the Physical Web app from the iTunes store
- Enable Bluetooth
- Swipe down and click "Edit" at the bottom of the "Today" tab
- Find the PhyWeb notifications item (it will be green if you haven't already enabled it) and enable it (make it red)
- Click "Done" to save your work.
Any time you swipe down, any physical web content that's within range will show up in a list. Just click on the item you want to get the details.
Alternatively, if you already have the Google Chrome web browser on your phone, enable Google Now in your settings and follow the instructions above to enable the Google Chrome item in your "Today" tab.