Understanding Baby's Communication Milestones

May 6th, 2026 12:00am

From the first smile to their first steps, a baby’s first year of life is filled with remarkable changes and developmental milestones. Throughout your little one’s first year, they will also learn how to communicate with you through coos, gurgles, and their first words. Understanding their cues early on can help support further healthy language development.

The Foundations of Communication: 0-2 Months Old

During the first two months of life, it is normal to expect your little one:

• To Cry with Purpose: Babies will cry to communicate hunger, discomfort, or need for attention.
• Reflexive Sounds: Babies will grunt and sigh frequently.
• Social Cues: Babies will make eye contact and will respond to voices with quieting and body movements.

These early behaviors are primarily reflexive, but are important to set the foundation for bonding with your child. As you continue to talk to, hold, and make eye contact with your baby, you are setting the groundwork for effective communication when they are older.

Intentional First Coos: 2-4 Months Old

During this time, your baby will take their first step into making intentional sounds. You can expect:

• Cooing and Short Vowel Sounds: Babies will make longer “oooh” and “ahh” sounds during their wake windows.
• Smiling: Babies will start smiling back at familiar faces and will respond to voices with excitement.
• Turn Taking “conversations”: Babies may pause while you are speaking and can “respond” with noises, imitating the rhythm of communication.

These are the next behaviors that are part of your little one’s first steps to using sounds intentionally. As you continue spending time with your baby, continue to engage with them socially to help propel language and emotional development.

Babbling Begins: 4-6 Months

During this time, your little one will start babbling, screaming, or yelling. This is the first step to your little one finding their voice!

• Consonant- Vowel Combinations: Your little one may start combining sounds like “ba”, “da”, and “ma”.
• Expressive Facial Cues: Your little one may start laughing or squealing to show excitement when they are spoken to or interacted with.
• Attention to Voices: Your little one will start turning towards familiar sounds and start responding to their name.

This stage is the precursor to forming their first words. At this age, it is important to continue imitating your child’s noises and responding enthusiastically.

First Gestures: 6-9 Months

During this period, your little one begins to link sounds with meaning. They will start gesturing to things they are interested in and will start to understand simple words.

• Gestures Start: Your little one may point, reach for, and wave at people and things that they are interested in.
• Understanding Words: Your little one may start to respond to “no”, “bye”, “hi” and/or “milk”
• Babbling will increase: Babies will start making repetitive sounds like “babababa” or “dadadada”.

Continue combining gestures and words to help your little one continue to develop their communication skills.

First Words and Intentional Communication: 9-12 months

Finally! The first intentional mama and dada! At this age, your child will start to say words of familiar people and objects.

• First True Words: Your little one will start with “mama” or “dada” and may try to say the names of your family pet or other familiar family members.
• Imitation of Speech Patterns: Your little one will start to change their pitch of sounds and their tone in response to start mimicking adult conversation.
• Expressive Gestures: Your little one will start waving, nodding, or shaking their head in response to questions or in excitement.

This is a crucial period where your little one begins to understand and produce language. At this age, continue to utilize reinforcement when interacting with your child, especially when you are naming and showing them objects.

The first year of your little one’s life is a whirlwind of changes. It is important to note that every baby develops on their own timeline. Your routine wellness exams are the best time to discuss any concerns about your baby’s communication or developmental milestones.

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