This social milestone is established by age of ___________
Babies establish a smile on social contact by 2 months. Also done at 2 months Head sustained in a plane of the body on ventral suspension Follows moving object by 180 degrees Smiles on social contact Listen to voices and coos Ref : Nelson 20th edition pg no : 67
1 month
2 months
3 months
4 months
Growth and development