Can briefly lift head up when lying on stomach

Tracks objects moving side to side with their eyes

Can keep head upright when held in sitting position

Intentionally reaches for objects and can grasp them

Can roll from tummy to back position

Can sit upright when supported by pillows or hands

Startles or turns toward loud noises

Shows recognition of parent or caregiver voices

Shows preference for looking at faces over objects

Shows interest in examining their own hands and feet

Smiles in response to someone talking or smiling at them

Shows pleasure during social play and interaction

Produces clear laughing sounds during play

Has distinct cries for different needs (hunger, tired, etc.)

Produces "ooh" and "ahh" vocalizations

Makes repetitive consonant sounds like "ba-ba" or "da-da"