The adverb of photograph is photographically
Hello 10028095,
Im pretty sure he uses conversational tone to make the reader more comfortable with the character and to make the character more realistic and relate-able.
I hope I was of some help today! :)
A. Since
it indicates an exhange or a reason
Most authors connect their books to actual people, the way people read books sometimes they really connect to the characters so it can effect them. Also let's say a book is about bad decisions that can also change a person's decision in something in life, also effects then. Hope that helped a bit