Langmusi nomads

I was hiking in the valley near Langmusi when i met this family of sheperds. They instantly welcomed me into their tent and offered tea. I have no clue how we managed to communicate but we did somehow. They had a small guitar-like instrument so i tried to play something. Then i asked if i could take some photos.
They lived there, two brothers (i guess) and their wives, and a kid, in these tiny tents, with no floor, sleeping on mats laid directly on the humid ground. I felt cold.
The moment was magic.. they were so nice i didn't want to leave. But soon the difficulties of communication made it awkward for me to stay any longer.
They wanted me to send them the photos but they couldn't write their address and neither could I..