Answer:
being naughty infront of every one by chance a them not realising it
Interjunction
This is due to it being a statement
Answer:
My house is bigger than yours.
Your grade is worse than mine.
The Pacific Ocean is deeper than the Arctic Ocean.
You are more polite than Joey.
My brother is taller than I am, but he is older too.
It's been a while since I've read the book and I don't really a lot of the context, so just from this passage I would say it says he notices nice houses and other people's wealth and maybe envies them a little bit. (although you don't get that explicitly from this passage.)