Jul,
Ethan's favourite word is also 'Car'. When I frown at that or pretend din hear, cos he's always saying 'car', he came to me & look into my face & say 'che1' (car in mandarin). I wanted to laugh out cos he thot i dun understand what is 'car'. hahahahah!
Now he's starting to say 'No'. When he dun want something, he'll say 'No'. & if we ignore, he'll say 'No, no' like we dun understand what he says.