A man sitting on my seat offered to get up when he saw me undecided - should I ask him to get up or simply climb up the side upper berth? I took the book that I was reading out of my backpack as he began to get up. As we stood side by side for a few seconds, he asked me, "What are you reading?" I showed him my copy of Chimamanda Ngozi Adichie's Americanah . He tried to read the author's name and perhaps, failed. He returned the book with a look that made his friend chuckle. I wanted to tell him, it's a Nigerian name. I wanted to tell him that the title of the book is what Nigerians tend to call people who move to America, something like Amriki or Amrika-wale as we Indians might say in Hindi. I didn't want to explain without being asked, which was quite unusual for my ever-explaining self. Later in the evening, as I climbed up to the upper berth, allowing my co-passenger to have the lower berth all to himself, I wondered about the former moment. I bega...