In general, as long as the language function, visual development, perception, motor function and neurological reflexes are well developed, it can be considered that 2-month-old babies are more intelligent. 1. Language function: babies can use “babble” and “ah” to talk to adults. The infant will use “babbling” sounds and “ah” “yah” sounds to converse with adults. When the mother talks to the infant, the infant will look at the mother and simply say “oh” and “ah” in response. 2. Visual development: When the infant sees a familiar relative, he or she will be very excited and bright-eyed. At the same time, infants are able to follow moving objects, identify familiar people or things within a certain distance, and like to look at brightly colored things; 3. Perceptive ability: 2 months old infants have a strong ability to perceive things outside and begin to be curious about the outside world and new things, and can attract attention by crying or making other sounds, and can also express their preferences by crying or turning their heads. Infants also respond to sounds when they are awake or sleeping, and if there is a louder sound, they will show signs such as jumping in surprise, frowning, crying, or changes in breathing rhythm; 4. Motor function: At 2 months old, smart infants can already lift their heads well in prone position, and they can control their heads steadily when they are held vertically; 5. Neural reflexes: Smart infants’ neural reflexes will be more sensitive, such as If an object is placed on the cheek or corner of the baby’s mouth, the baby will turn its head to the side and start to search for food with its tongue. These are the signs that a 2-month-old baby is more intelligent. In addition to this, parents should talk more with their babies, let them listen to more music and read some black and white cards to promote growth and development in many aspects.