What is a simile, metaphor, and personification in "Fahrenheit 451"?

Simile:

"Oh, just my mother and father and uncle sitting around, talking. It's like being a pedestrian, only rarer. My uncle was arrested another time-did I tell you?-for being a pedestrian. Oh, we're most peculiar."

Metaphor:

He wept at his mother's grave, unable to hold back the waterfall that was his grief.

Personification:

Montag lay watching the dead-alive thing fiddle the air and die. Even now it seemed to want to get back at him and finish the injection which was now working through the flesh of his leg.