To start following a client, go to their profile page and click Follow.

Once you follow a client, their name will be listed on your profile page. The Following label will appear next to their name.

If you wish to stop following a client, click on  the Following label beside their name and the Unfollow button will appear; you can then click on it. Alternatively, go to the client’s profile page, click the label, and select Unfollow.