Profile picture
Click on your name in the top right corner on Settings. Then choose the Profile picture option.
You can add a profile picture in 2 ways:
1) Upload your own photo - Choose Choose image and search for the image on the PC. It should not be larger than 5MB.
2) Via Gravatar which you link to your e-mail address. For example, the profile picture you have with Gravatar ends up in Simulise.