With the majority of organised activities Mr A's response is: 'Mummy, I will do it later.' or 'Mummy, you can do it yourself.' (both read as 'I don't want to do it!!').
Well, unless we are speaking about exploring the nature or playing with any sort of vehicles...
So far, all our literacy activities have been on an ad-hoc basis. But oh, when I step back and observe and catch that perfect moment, the activity evolves beautifully.