- Use hands and mouth to explore objects
- Turns eyes and head to the sound of a hidden voice
- Localizes sound with eyes
- Find a partially hidden objects
- Fixes gaze on face
- Responds to name by looking for the voice
- Regularly localizes sound
- Coos, giggles, chuckles, laughs
- Says a vowel-consonant combination such as “ah goo”
- Social Smile
- Vocalizes in response to adult talk and smile
- Demands social attention
- Vocalizes pleasure and displeasure
- Distinguishes mother from others
- Reacts to sight of bottle or breast
- Comforts self with thumb or pacifier
- Lifts head and chest when lying on stomach
- Turns over when lying on stomach
- Holds head in line with body when pulled to sitting
- Bears almost all weight on legs
- Looks and reaches for faces or toys
- Picks up toy with one hand
