hand from substrate such as ground. Cf. lift. See video. See also video search for object. pick up and release While sitting, grasp and lift objects, such as dry leaves, sand, pebbles, etc. and release in air. Solo play in infants. 8. See video. pick up discarded food Nishida and Turner Food retrieval. Pick up food left by others. Infant often picks up food left by mother and ingests it, thus gradually learning what to eat. See video. pick up lice See remove lice. pile dry leaves Spread arms to right and left sides and bring together dry leaves in front of body by adduction of arms. Produces distinctive rustling sound. Solo play by youngsters. 7. See video. pin down See press down. P 13 play face pinch