Responds to own name
- Responds when spoken to face to face
- Voice may express emotion (ex: happy, upset)
- Blows bubbles, sputters, and/or raspberries (4 months)
- Laughs when tickled (4 months)
- Add consonants to babbling and will combine consonants with vowels into long, repetitious strings (ex: babababa, mamama) (5 months)