At 12 to 18 months PHYSICAL MILESTONE: Your toddler is starting to develop his motor skills. According to Lillian Ng GUI, psychologist, Christian counselor, and member of the International Society for the study of trauma and Dissociation, your toddler at this stage weighs about 17 to 30 lbs and stands around 27 to 35 inches tall. "He is able to crawl well and can stand on his own. He gestures or points at things to indicate he wants them. He can turn the pages of a book and likes to push, pull, and dump things. He enjoys carrying small objects while walking, often one in each hand," she mentions. Other milestones include being able to wave good-bye, clap his hands,and hold a spoon while eating, although he has difficulty getting the spoon into his mouth. COGNITIVE MILESTONES: GUI enumerates the following abilities: "He knows and says eight to 20 words you can understand. Hee is able to look at the person talking to him, says 'hi' or 'bye' if ...