What racial traits does Conway notice about the inhabitants? How do they behave? (Chapter Six)

From the text:

The inhabitants seemed to him a very successful blend of Chinese and Tibetan; they were cleaner and handsomer than the average of either race, and seemed to have suffered little from the inevitable inbreeding of such a small society. They smiled and laughed as they passed the chaired strangers, and had a friendly word for Chang; they were good-humored and mildly inquisitive, courteous and carefree, busy at innumerable jobs but not in any apparent hurry over them.