The immortals in The Iliad act very similar to the mortals, especially in terms of human emotion and character traits. The beginning of the epic poem in book one is a perfect example. Like mortals, the gods also have families, including marriage and children. Hera and Zeus' relationship make them seem like an average married couple; they obviously care about each other but also disagree at times and argue. For example, Hera acts very jealous over Zeus' promise to Thetis, and Zeus stubbornly insists that he will not be controlled by his wife.
Not only do the gods have emotions like humans, but they also participate in mortal activities, like planning enormous feasts, eating, and sleeping.