Answer:
I think it is because August mumbled "Hi" , and looked down at his feet.
The coordinating conjunction in the sentence is NOR.
There are only seven coordinating conjunctions. Remember the terms FAN BOYS in relation to coordinating conjunctions.
F - for
A - and
N - nor
B - but
O - or
Y - yet
S - so
Coordinating conjunctions connect words, phrases, and clauses. Giving equal emphasis on two main clauses.
Here are the patterns for using coordinating conjunctions:
1) connecting two main clauses
main clause + coordinating conjunction + main clause
2) connecting two items
item + coordinating conjunction + item
3) connecting three or more items in a series
item + item + coordinating conjunction + item
" war is a time out of balance. When it is truly over, we must work to restore peace and harmony once again"
"As long as we can remember them, our families will always be with us."
"Guilt can make you doubt yourself at the very moment when you need to proceed with certainty."
"But being Catholic did not mean we would forget the Holy People and our Navajo Way"
"Remember, grandchildren, like so many other Navajos, I had grown up hearing only criticism and hard words from the <em>bilagaanaas</em> about our people. We Navajos were stupid. We were lazy. We could not be taught anything. We could never be as good as any white man. To hear what was now being said truly made the sun shine in my heart"
"Yet all the laws of the United States, those laws that we now have to live by, they are in English"
Hope this helps;)