Your Skype for Business picture is the same as your Office 365 profile picture, which appears in other Office programs you use, such as Outlook. Want to change it? Here's how.
You can hide your picture in Skype for Business. If you hide your picture, Skype for Business users will see an avatar silhouette instead of your picture, like this:
You can also hide your picture from everywhere it appears in Office programs, including Skype for Business.
You can stop Skype for Business from displaying pictures, for example, if you want to see more text in the Skype for Business main window.