1 month
- Lifts head briefly when lying on stomach.
- Responds to Sound.
- Blinks at bright lights.
- Stares and focuses at faces.
- Follows objects moved about 6 to 10 inches from face.
- Turns towards familiar voices and sounds.
- Smiles and laughs in response to you.

2 months

- Follows objects with eyes.
- Babbles.
- On stomach, holds head up for a few minutes. Turns from side to back.
- Raise chest and head (do a mini push up) while on stomach.
- Reaches for an object.
- Rolls over one way.
- Brings both hands together.

3 to 4 months
- On stomach, lifts head and chest, supported by forearms. Lifts head when lying on back.
- Holds head steady when upright.
- By 4 months, on stomach, Baby can lift head and shoulders high, arms straight for support. Rolls from stomach to back.
- Laughs loud and smiles.
- Opens and shuts hands.
- Kick Legs.
- Squeals and coos in delight.
- Does small mini pushups.
- Bats at toys.
- Reaches for toys and objects.
- Rolls over.

5 to 6 months

- Sleeps with palms open.
- Passes object from one hand to the other.
- Tries to get toy or object that is out of reach.
- On stomach, extends legs and arms, arches back, rocks.
- On back, lifts head and shoulders.
- Supported on feet, bounces up and down.
- By six months, Baby can sit without support.
- Starts learning how to crawl.
- Starts crawling.
- Sits unsupported for several minutes.
- Feeds self a cracker.
- Babbles and combines two syllable sounds.
- Separation and stranger anxiety may begin.

7 to 8 months

- Rocks back and forth on hands and knees.
- May creep, may pull up to standing.
- Start crawling or lunging forward.
- Play peek-a-boo.
- Distinguishes emotions by your tone of voice.
- Stand while holding onto something.
- Clap hands.

9 to 10 months

- Crawls on hands and knees, limbs straight, trunk parallel to floor.
- Makes stepping movements when held in walking position.
- Crawls up stairs.
- Cruises, holding onto furniture.
- Tries to climb.
- Stands while holding onto something.
- Learns how to walk.
- Drinks from a cup or bottle independently.

11 to 12 months

- Stands well at 11 months.
- Can walk with assistance at 11 months.
- Stoops and squats.
- At 1 year, Baby takes first unaided steps.
- Indicate what he or she wants with gestures other than crying.
- Imitate others.
- Put toys or object into a container.
- Babble more clearly.
- Indicate wants with gestures other than crying.
- Fearful of strangers.