Bunch of copycats

Nigel: Look a sports car!
Shannon: Look a sports car!

N: It's a Subaru WRX!
S: It's a Subaru WRX!


N: Mummy, Mei Mei's following me.
S: Mummy, Ge Ge's following me.

N: Stop it!
S: Stop it!

N: (silence)
S: Haha!
N: Haha!

S: Mummy, Ge Ge's following me.
N: Mmmy, Mei Mei's following me.

I hope they are developing some cognitive powers or improving on their social skills. It's got to be good for something, I hope.