Humans use social intelligence to interpret and navigate interactions with other people and agents in our shared world. As AI systems become pervasive in human social situations, it is crucial to improve the social intelligence of these systems in order for them to seamlessly work with, for, and around humans. This workshop aims to bring together researchers from computer vision and other communities to collaborate towards building computational foundations for core social intelligence abilities. This edition of our workshop centers discussions, keynotes, and paper presentations around the topics of reasoning, multimodality, and embodiment in socially-intelligent AI.