I'm working on my first real story and it's written from a first-person perspective, my problem that I'm facing is that I don't know how to make my main character's interactions with the secondary characters help the reader to develop sympathy for the secondary characters. Mainly in conversations with the main character I don't want the readers opinion to be overly jaded by the main character's thoughts. To be more specific, my main character is out alone in the wilderness trying to find his way to safety and he comes across a thief. The thief tried to steal from him so he has angst towards him. I want the readers to feel sympathy for the thief in opposition to the main character's viewpoint and opinion, any thoughts as to how I could accomplish this?