The activity feed of your homepage will show profiles you saved from your 'My First List' list - this is the default list that will display.
As a Crunchbase Pro user, you have the ability to select other saved lists to display on your homepage. To do this, navigate to the homepage and click the dropdown next to 'Viewing Activity From'.
To add profiles to a list, either add them directly within the list or click the 'Save' button next to the profile.