6 W
Social smile
3 M
Smile responsively
5 M
Mouthing
Make bubble
6-9 M
Laughs
Peek-a-boo
9 M
Object permanence
9-12 M
Stranger anxiety
Feed themself using fingers
12 M (play):
- salam
- flying kiss
- high-five
- bye-bye
15 M
Spoon feed (messy)
Drink from cup (spill)
Repeated casting
18 M
Solo play
Eat drink: minimal spillage
Indicates toilet need
Help undress
2-2.5 Y
Parallel play
Play pretend / role play
Eat, drink: no spillage
Dress and wear own slippers with help
Dry by day
3 Y
Eat independently
4 Y
Brush teeth
Dress independently
Understand need to share / take turn