What Walter returns ,what does mama learn

When Walter returns, Mama learns that on the first day he borrowed his friend Willy's car and drove into the country to look at steel mills, and then went to a local bar, the Green Hat. On the second day, he drove the car all the way up to Wisconsin to look at the farms, ending the day again at the Green Hat. Today, he says, he walked all over the South Side of Chicago, and plans to go right back to the Green Hat. From this, she comes to understand that he truly wants to open his own business, and that he's genuinely been doing his homework to see what that will entail.