When you become friends with another member of the Commons, you will start seeing her/his activity on your “My Commons” page. It’s a great way to keep track of what’s happening on the Commons that is relevant to you. To accept a friendship request, you can either follow the link in the e-mail you receive, or if your are logged onto the Commons, you will see a notification in the top right corner, to the left of your avatar. You’ll be directed to a web page that lets you to accept or reject the friendship request.
To make a friend, go to the People tab and find a person you would like to friend: