the poem can effect the reader
Adds effect
yes.
the reader uses thing such as drugs to put a sad face onto the reader
Similie. When you use like or as that is a smilie. :)
Metaphor
It is a similie as you are comparing (something) to how sly the fox is. A similie uses the words "like or "as".
there way of seening it.
a simile is something that has "as and like" in it
As brittle as glass.
As dry as a bone.
Weak as a kitten.