ou can share any Folio directly from the open Folio by clicking the built-in Share Icon.  
The Icon located on the right side of the Folio. It will look like the image below.
To share click on the share icon (lower left part of the screen). 

This will let users share the link directly to Facebook, Twitter, Pinterest, email and text (text option only shows on mobile devices).
NOTE: If you do not see the sharing icon in your Folio it will need to be turned on in the Hide/Show Panel.
If the eyeball next to the Sharing Section is turned off then the sharing feature will not show in your Folio. 

Note: If you have not configured your browser to open email links, the email icon may not open your email program.