The main signs of intelligence of 2-month-old babies are as follows: 1.They can follow the movement of objects, pay attention to brightly colored objects and show joy when they see them. And more alert to the environment, there are more clear and present response, like to use the eyes to turn around to see the outside world; 2, can read the expressions of adults, and adults have some communication, and can babble pronunciation, and when they talk, the baby will use swing head and other body language to communicate with people; 3, like the mother’s voice, when the mother and its talk will feel safe, comfortable and happy. Some music will cause the baby’s limbs to dance happily, such as stirring legs and moving the upper limbs; 4, the baby will use different cries to express emotions, and will also show a short smile; 5, the baby can identify different tastes, and show clear disgust for unpalatable food, and will purposefully avoid unpleasant smells. At this stage, the 2-month-old baby’s language and hearing are gradually developing, so parents should consciously train the baby’s sense of hearing with different sounds in different directions. Hang bright, moving toys indoors to guide infants to see, touch or grasp. Fix a time every day to play and play with the baby, so that the baby can feel and learn things in the pleasure of enjoying the affection.