To share a shopping list with someone simply open the detail view of the shopping list and tap the share icon (located just below the title). From the resulting menu you will have the option to post to Facebook, tweet, email and text message.
If the person you are sharing the shopping list with has our app installed as well then they will have the option to import the shopping list into our app if you shared the list with them via the email option. Once the person receives the email, he/she can tap-and-hold the attachment and will be asked if he/she wants to open that in our app. This is explained in the Common Features online help document.
Also, you can choose to print the shopping list from the actions menu in the shopping list detail view – This creates a PDF file that contains your shopping items. You can then email this PDF with others (using the share icon in the PDF preview).