The slips of papers symbolize fate because depending on what you get determines your life. If you get the one with the black dot then you win and die.
Selecting the smoothest and roundest stones is imagery because it describes the stones and it is almost like you can feel the stonees in your hand.
The feeling of liberty sat uneasily is personification because liberty is an idea and it can't sit.
Traditions must be followed or next thing they know they'll be wanting to live in caves again.
Clear and sunny with fresh warmth of a summer day is imagery because you can imagine what it looks like and feel the sun beating down on you.
Peace and Violence Peace and violence are juxtaposition because "The Lottery” begins with a description of a beautiful day with a warm tone that strongly contrast with the violent and dark ending of the story.