Imitation

William is finally starting to mimic us.
Yesterday, he imitated me doing the following things:
-shaking my head no/yes
-making elephant trunk
-pointing to eyes, nose, mouth and hair and heart
-making moose antlers

Today, he imitated us doing the following things:
-running around the room with arms up in the air and even said "goal" after Andrew did this exact thing while watching a Liverpool soccer match.
-shaking head yes/no
-said "bubble", "pop", "ball"

Current vocabulary:
ball
bubble
pop
dada
Ivan
Rowan
dog
car
truck
duck
go
up
baba

He also imitates the "sssss" and "zzzz" sounds