When Bakha surveys the crowd and notices the difference in how he is dressed, how does the narrator describe the experience of being an outcaste at such an event?

The narrator points out that Bakha is in a literal sense a part of this crowd, but his caste and his related life experiences separate him from everyone else. He can share this experience but not fully understand it, which is representative of his life in general, where he is allowed a basic existence but not a fully participatory one.