Please notice that this can only be done in the Shuffle App, website login does not allow access to your device's phone book.
1.Select Contacts from the main menu: 
2.Select the Green plus sign to add a Contact: 
3. Select “Choose From Phone Contacts”: 
4. You may have to allow Shuffle to access your contacts: 
5. Choose which contact you would like to add: 
6. Then this contact will be added to your Shuffle Contacts: 
See this in action on our Shuffle by Elify YouTube Channel: