Notion Faces is a feature launched by Notion that allows users to create personalized avatars by selecting different facial features and accessories. These avatars can be used as Notion profile pictures or shared with others. Designed with cultural and identity diversity in mind for a global audience, this feature aims to provide users with a simple, fun, and personalized way to express themselves. Notion Faces is free to use, and users can access and create avatars without logging into Notion.