Here's a breakdown of his key traits:
* Physically Small and Insecure: Curley is described as a "pugnacious" man with a "small, tightly-curled hair" and a "nervous, jerky manner." He is often seen as trying to prove his masculinity by picking fights and being overly possessive of his wife.
* Jealous and Possessive: He is constantly suspicious of the other men on the ranch, especially those who might be interested in his wife. He views his wife as property and becomes enraged when he thinks she is flirting with others.
* Violent and Cruel: Curley frequently uses his power and size to bully and intimidate others. He has a history of fights and aggression, often ending in injuries.
* Unintelligent and Superficial: He lacks the intelligence and maturity of the other ranch hands and is often driven by his own insecurities and petty jealousies.
Curley's role in the story is significant:
* He creates tension and conflict: His jealousy and aggression contribute to the overall atmosphere of fear and uncertainty on the ranch.
* He is a symbol of the harsh realities of the American Dream: His superficiality and inability to find true happiness represent the pitfalls of pursuing material success and neglecting human connection.
* His actions ultimately lead to tragedy: His violence and jealousy directly contribute to the death of Lennie, the gentle giant who is trying to achieve his own version of the American Dream.
Curley is a complex and troubling character who ultimately embodies the dark side of human nature. His presence on the ranch represents the threat of violence and the fragility of the hope for a better future.