To share files from the Box iOS app, first download the app from the App Store and open it. Once it's open, touch the I have an account button:
In the next screen, touch the More login options button located at the bottom:
Then type your Stanford email address and touch Continue:
You will then be shown the Stanford WebAuth screen where you type in your SUNetID and password then touch login:
Find the file you want to share, and touch the arrow next to the filename:
You will then see several options for the file. Touch the Share button to share the file:
In the next screen, type the recipient's email address, any message you would like to provide, and touch share file:
Repeat this process for every file you need to share.