ABSTRACT
This chapter explores how the influence of the physical constitution intertwines with and reinforces emotional experiences in complex ways that in turn influence subsequent development. This "joint-attention-seeking" behaviour happens as children begin to understand that their parents can have an interest in something they are interested in, that this interest, as well as the pleasure derived from it, can be shared, and that this sharing of pleasure in itself generates pleasure. It also shows the infant that his mother or father can recognize and respond to his wish for him or her to participate in the experience. In this way, the infant begins to learn about, interpret, and predict the behaviour of others. For most parents, watching their child take his first steps is utterly thrilling. Parents mostly feel intense pride and joy at their child's achievements, particularly as he begins to move himself around so confidently.
