1. Open Outlook and go to the Contacts tab, right-click on the contact list that will be shared and select Share --> Share Contacts. 
2. Add the person that you want to share with to the “To” field. Type a short message if you want and send. Once they accept the invite they will find it in their Contacts tab in Outlook.

   
   

   

   
   

3. Back in your Outlook right-click on the contact list again and Share --> Folder permissions.

   
   

   

   
   

4. From the permissions tab, select the permissions that you want to grant.  (Owner may cause issues with Contact Folder ownership so do not select that option).    

   
   

   

   
   

5. On the person’s system that you have granted access they will need to change a setting to allow for proper communication.   In Outlook they will need to go to File --> Info --> Account Settings -->Account Settings --> Email --> Change --> More Settings 

   
   

   

   
   

6. Select the advanced tab and make sure that download shared folders is not checked (if this is not checked then changes made by this person WILL NOT UPDATE properly.)