
All babies have their own timetable, but you can watch for certain developments in your 9-month-old. Celebrate with your baby as he reaches or nears these milestones.
Cognitive
Recognizes people and objects at a distance
Experiments with object permanence (objects and people that are out of sight still exist)
Curious about objects just out of reach; reaches for them
Attaches meaning to certain sights, sounds, and gestures; may be ready to learn baby sign language
Recognizes and responds to familiar words
Begins to understand that objects and people have names
Anticipates what comes next in familiar routines (running water means a bath)
May be able to understand and play clapping games
Motor
Learns to use thumb and index finger to pick up small objects (pincer grasp)
Holds an object in each hand
Bangs objects on a table, floor, or against each other
Voluntarily lets go of toys
Feeds self, though messily
Drinks from a cup
Sits without support
Scoots or begins to crawl
May stand using furniture for support
May pull self to standing position
Communication
Looks for and reacts to sounds outside his line of vision
Babbles echo actual words and include vowels and consonants (“ba ba ba,” “da da,” “bah-dah”)
Takes turns mimicking conversation (you talk, he babbles, you talk, he babbles
Expresses likes and dislikes with clear body language (smiling and kicking when happy, frowning when unhappy)
Vocalizes feelings with squeals, howls, and other sounds
May wave good-bye
Able to learn some baby sign language
Social
Distinguishes between strangers and family
May show shyness or fear around strangers
Shows frustration when limits are set
Tests limits and watches for your response
Enjoys peekaboo and other simple game