First, the child is more likely to attend to and imitate those people it perceives as similar to itself.
Consequently, it is more likely to imitate behaviour modeled by people the same sex as it is.
Second, the people around the child will respond to the behaviour it imitates with either reinforcement or punishment. It is likely that the child will be reinforced for acting in gender appropriate ways and punished or ignored for gender inappropriate behaviour. Third, the child will also have observed the consequences of other people’s behaviour and will be motivated to imitate the behaviour it has seen reinforced and avoid imitating the behaviour it has seen punished
(vicarious reinforcement and punishment).
For example, imagine three siblings, James (4