Beecher Prep holds a reception after the ceremony. August allows his parents and other relatives to hug him. They start taking pictures, and Dad calls Summer and Jack over to take a group picture. August doesn't even think about his face as more kids join the group photo. By the end, most of August's classmates are huddled together, laughing as their parents take picture after picture. Nobody seemed to care about being next to August, and he even thinks that people wanted to get close to him.
The photo session shows just how much August has changed over the course of the novel: he's now way more comfortable in his skin and having his face appear in pictures. He's also now a valued part of the school community, as evidenced by his classmates joining him in the photos and wanting to be near him.