As soon as he gets permission from his daddy to draw on the discarded business cards, he wasted no time. He diligently drew on the back of the cards. And I thought he was scribbling on them. Little did I realise that he was tracing the path on the roadmap at the back of the cards.
According to Daddy, he was showing the roadmap to his 'shop'.
And he did that on the entire pack of cards in probably about three days. What intrigued him? Only he knows.