1 used as the object of a verb or preposition when the person(s) spoken or written to is/are the object(s) of an action he/they perform(s): Why are you looking at yourselves in the mirror?; You can dry yourself with this towel.
az: özü, özünə
ru: себя
2 used to emphasize you: You yourself can’t do it, but you could ask someone else to do it.
az: sən özün, siz özünüz
ru: вы сами, ты сам
3 without help etc: You can jolly well do it yourself!
az: özün, təkbaşına
ru: са(и)