TL;DR:
Open AirRoster → Friends (bottom menu) → Add Your Friends → Search their name → Open profile → Add Friend. Once they accept, their roster will appear on your Friends page.
Launch the AirRoster app on your device and ensure you are logged in.
Tap on the Friends option located in the bottom navigation bar.
Inside the Friends section, scroll down and select Add Your Friends.
A new window will open with:
A search bar to look up your friend by name
Note: They must have an AirRoster account to appear in search results.
Tap on the friend’s name from the search list to open their profile.
Select Add Friend on their profile page.
Once your friend accepts your request, you will be able to view their roster under the Friends page.
For assistance or if you cannot find a friend in search, please contact Wingman Support:
support@wingman.zohodesk.com