Mom lay back to the baby and turned to him and said, "Come over here, Mom gives him good things." Attract him with toys and let him climb over his mother. At first, mother could lie down or crawl, so it was relatively low and easy to climb over. This game exercises your baby's athletic ability. Throw things into the box, prepare a paper box, and let the baby throw all kinds of toys into the box. It's easier to take things from the box, and throw things into the box, which requires intelligent development. This game can develop baby's intelligence.