Explanation:
Modeling behavior:
It is also called "Observational learning".
Modeling behavior, imitates the action of another person by observing the person.
Real-life example:
Take an example of infants and child. They learn initially by observing their parents, siblings. When they slowly start moving out of home, they learn from surroundings and so on. Even the elderly learns new language by observing and imitating only.
Conclusion for the situation:
According to the given situation Hiram is actually observing his brother's behavior and imitating the same.