The boss in "Of Mice and Men" is portrayed as a harsh and controlling individual who takes advantage of his power over the migrant workers. He is described as having "restless eyes" and a "twitchy nose," which suggests that he is always on the lookout for trouble. The boss is also shown to be insensitive to the needs of others, as seen when he questions George and Lennie's relationship and accuses George of taking advantage of Lennie. Despite his abrasive personality, the boss is still a complex character who is struggling to maintain his authority in a world that is constantly changing.