Final answer:
In 'McTeague: A Story of San Francisco', Max and Walter become friends through shared experiences. Likewise, Max Ernst becomes friends with other artists through collaboration. Andy makes friends at summer camp through introductions and shared interests.
Step-by-step explanation:
In the book 'McTeague: A Story of San Francisco' by Frank Norris, the characters Max and Walter become friends through their shared experiences and interests. Max Ernst, the German artist, became friends with some Post-Impressionists and Dadaists and collaborated with other artists such as Salvador Dali and Joan Miró. Andy becomes friends with the other kids at summer camp when he introduces himself and shares stories about his family while also practicing his music regularly.