Here's what Sophie can do at 18 months:
use her feet to push a ride on toy,
give a high five followed by a "pound it" fist and "exploding" fingers,
use a shovel to fill a bucket with sand and dump it out,
pull a toy dog by a string,
put trash in the trashcan,
pretend to talk on the telephone,
climb a chair,
go up and down steps safely,
do all the hand motions for pat-a-cake, wheels on the bus, & eensy weensy spider,
use about 55 words in sign language,
stack 9 blocks,
pretend to feed a doll,
pretend to eat a picture of a cupcake in a book,
hold her pencil with the correct grip,
give puckered lip kisses,
give an occasional hug,
smash a bug on the sidewalk,
rock on a rocking horse,
run,
use a spoon and fork,
can point to her ears, eyes, nose, ears, teeth, head, neck, toes, knees, hands, & bellybutton,
can make the sheep(baaaa) , dog (hhhhhh), and cow (mmmmm) sounds,
and even helps Mama do chores.