<prompt> An 18 month old infant can do AE -Climbing upstairsCan follows mothers activitiesCan turn 2-3 pages at a timeCan say 2-3 wordsCan make tower of 8 cubes  <response>: Ans. is a i.e., Climbing upstairs A child walks up and downstairs with one step at a time by 2 years. o A child can mimic the action carried out by the mother at home mimicry by 1 yearof age. o A child can turn 2 or 3 pages of a book at time by 13 months. o An 18 months old child can use 10 words with meaning. o An 18 months old child can build a tower of 4 cubes not 8 cubes. 