From Long Way to a Small, Angry Planet by Becky Chambers (p.153)

When meeting an individual of another species for the first time, there is no sapient in the galaxy who does not immediately take inventory of xyr physiological differences. There are always the first things we see. How does xyr skin differ? Does xe have a tail? How does xe move? How does xe pick things up? What does xe eat? Does xe have abilities that I don’t? Or vice versa?