What are two examples in the play of the relationship between Biff and Happy?

When the boys were younger Willy placed many of his dreams into his son Biff. He looked at Biff's athletic abilities and probably lived his dreams through Biff's accomplishments. He was on the road often as a salesman but went his sporting events when he could.

Willy's relationship with Happy was very different. Happy was often overlooked. He loved his father and would do anything to seek out his approval and attention such as bringing it to his attention that he had lost some weight. He continues to seek his father's approval even as an adult.