You must then set one of these pictures as your default picture, the one that will appear when someone visits your profile. You can select any of your uploaded pictures to act as your default picture.

The new profile icon is a generic silhouette of a person, slightly reminiscent of a small egg atop a larger one.

The silhouette of a person's head used as the default profile icon for Microsoft Outlook 2010 was based on a police mug shot taken of Microsoft co-founder Bill Gates in 1977. Rating: The outline of ...

On Friday, Twitter introduced a new default profile picture, switching from the well-known egg to a simple human silhouette.