This co-design workshop was presented at the World Anti-Bullying Forum 2021. During the workshop, I co-created social media interfaces with 25 participants—including school teachers, practitioners, and cyberbullying researchers—to help girls cope with online sexual harassment. The participants assumed the role of product managers tasked with optimizing the user interface of a social media platform to better support victims of online sexual harassment. Reference: Tan, Y., Vandebosch, H., Pabian, S., & Poels, K. (2021). Using co-design to create social media interfaces that help girls cope with online sexual harassment. [Conference Workshop] https://worldantibullyingforum.com/previous-forums/wabf-2021/