whats a hyperbole, metaphor alliteration and personification peice from mending wall

A metaphor compares the stone blocks to loaves and balls. A metaphor-hyperbole compares the method of placing the rocks to a spell.

"And some are loaves and some so nearly balls

We have to use a spell to make them balance:

"Stay where you are until our backs are turned!"

A personification (quoted sentence) treats the blocks as persons.

"Something there is that doesn't love a wall."

In lines 32 and 33, Frost uses alliteration: Before I built a wall I'd ask to know / What I was walling in or walling out.