I don’t have an available Wi-Fi network, but I can use a personal hotspot (iOS)

If your personal phone is an iPhone, follow these steps:

1. Go to the home screen
2. Go to Settings
3. Select “Personal Hotspot”
4. Turn on the switch that says “Allow Others to Join”
5. Make a note of the Wi-Fi Password and the network name that are displayed on the screen. 

Information for Android can be found here.