1. Click Settings at the top of your Page.
2. Click Page Roles in the left column
3. If the person is your Facebook friend, begin typing their name and select them from the list that appears. If the person isn’t your Facebook friend, type their email address.
4. Click Editor to select a role from the dropdown menu
5. Click Save and enter your password to confirm
Depending on their settings, the person may receive a notification or an email when you give them a role.