Connected Milestones
| CDC | Babbles with expression and copies sounds he hears | 4 months | 
|---|---|---|
| BF | Babbles more expressively and spontaneous | 4 months | 
| CDC | Babbles with expression and copies sounds he hears | 4 months | 
|---|---|---|
| BF | Babbles more expressively and spontaneous | 4 months |