It's very cold in the desert at night, you have to keep warm as you have to: sitting by the campfire, having a soul-warming conversation about home, or...
Razumovsky dyes Oleg's hair black (and how else to explain it?)
Vadim braids Altan's pigtails.
Well, the Poet just doesn't like the hairstyle with which Volodya was going to go to a poetry evening.