Abstract
This chapter argues that joint attention needs to be understood in terms of one person's engagement with another person's engagement with the world. It is pivotal from a developmental perspective that we have an appropriate view of what is involved when we share experiences, or when we perceive and align with another person's ‘attention’ as a bodily-expressed and affectively toned relation with the environment. The chapter explores these theoretical issues through studies involving children with autism, who have limited ability to engage with others emotionally. It concludes that intersubjective engagement, and more specifically the propensity to identify with the attitudes of others, is critical for the early development of joint attention.