1. Navigate to Contacts via the left-hand navigation bar.
2. Click Public teams or Private teams under Team Administration in the left pane.
3. Hover over the team you want to add a member to, then click the Team settings icon at the far right.
4. Click the Add team members icon at the right side of the search field.
5. In the Members field, type the name of a user in the field and select from the dropdown menu that appears
OR
Enter a list of email addresses separated by commas or semicolons.
6. Click Add.