Characterized by a sincere enjoyment of her duties as a hostess and a concern for people to enjoy themselves at her parties, Judy Trenor initially appears to be one of Lily Bart’s most reliable friends, as she actively helps Lily in her effort to seduce Percy Gryce. However, Judy is also highly sensitive to financial matters, such as women borrowing money from her husband Gus Trenor, and later punishes Lily for doing so by rejecting her from her social circle. Judy is also a keen social observer, and admits that she only accepts Bertha Dorset’s friendship because she knows it is better to keep potentially dangerous people on one’s side instead of antagonizing them.