View Another Person Shared Tasks. Before a person can view one of your folders they need permission. Click Folder Share Tasks In the To box enter the name of the recipient for the sharing invitation message.
Type in the name of the person you want to share with. Make sure that the Allow recipient to view your Tasks folder box is checked. Toggle on Public sharing.
Level of permission can be changed later on step 3.
This action will create a sharing invitation with Reviewer level of permissions. My tasks shows a users individual tasks. Click the Tasks button in the Navigation Pane and then the Open Shared Tasks from the toolbarribbon. Type in the name of the person you want to share with.