Change your Avatar
As soon as a user account has been created, you can upload an image so that this will be shown in updates on contracts and events you make.
The size of the image should be 48*48pixel or at least ideally squarred so that the software can cropp it to this size. If you have no image available of this size you can use the service of www.cropp.me or similar websites. If you have a linkedin or Facebook account you will probably already have an image that can be used for that.