Rustam is a very polite but outgoing individual. He generally spends his time speaking with his bandmates, but he'll attend parties and stuff for the hell of it sometimes. While he doesn't cook, he'll suggest certain things to eat if nobody has an idea. (Sometimes, his suggestion is taken.)
Rustam is very finnicky about physical contact. Sometimes he'll be fine, but sometimes he won't. It appears to depend on his mood.
Rustam is the Kazakh equivalent of the name "Rostam". It's unsure what the meaning is, but it be from the Avestan words "raodha" and takhma, meaning "to grow" and "strong, brave, valiant" respectively.
Niyazov comes from the Persian word "نیاز" (niyâz), meaning "desire, wish, gift".
Rustam was named after Uzbek singer Ruslan Sharipov (who was a member of group Болалар), though his name isn't Ruslan.