Milestones are guideposts, not deadlines. Babies hit them in their own order and time, but knowing the typical ranges helps you celebrate progress and spot concerns early.
2 Months
- Smiles socially.
- Calms when spoken to or picked up.
- Holds head up briefly during tummy time.
- Follows objects with eyes.
- Coos and makes “ahh” sounds.
4 Months
- Holds head steady without support.
- Pushes up on elbows during tummy time.
- Brings hands to mouth.
- Laughs and babbles.
- Reaches for and grasps toys.
6 Months
- Rolls in both directions (back to belly, belly to back).
- Sits with support, then briefly without.
- Recognizes familiar faces.
- Mouths objects to explore.
- Passes objects from hand to hand.
- May start solid foods.
9 Months
- Sits independently.
- Crawls (or scoots, army-crawls — all valid).
- Pulls to stand on furniture.
- Uses pincer grasp (thumb + finger).
- Babbles “mama,” “dada” (not yet specific).
- Plays peek-a-boo.
12 Months
- Cruises along furniture, may take first steps.
- Says 1–3 words with meaning.
- Waves bye-bye.
- Drinks from a cup.
- Understands simple commands (“come here”).
- Looks for hidden objects (object permanence).
When to Talk to Your Pediatrician
Bring up concerns at every well-visit. Specifically flag: no smiling by 3 months, not babbling by 9 months, not making eye contact, loss of previously acquired skills, stiff or floppy muscle tone, or any milestone delayed by more than a couple of months past the typical range. Early intervention services are free in most regions and dramatically improve outcomes.
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