When infants play, they are focused on their own sensorimotor experiences. While they may smile and enjoy the attention of others, their play is not interactive but is solitary. For example, an infant may smile at another infant while batting at a toy, but he is focused on manipulating the toy rather than engaging the other infant in play.
Nannies can engage infants in sensorimotor play by brushing the edge of a soft scarf over the baby’s head, face, arms and legs. Nannies can talk through the activity by saying things like “Do you feel the soft scarf?” and “Does this tickle?”