When babushkas address younger people they usually use the following:
Молодой человек (young man), девушка (young girl) (these are rather common forms of address, used not only by babushkas), сынок (son), внучек (grandson), дочка (daughter), внученька (granddaughter) (these are more informal and it may depend on the person's age which will be used).
If they want smb to give them his seat they may say:
Молодой человек, уступите пожалуйста место. (the most common and polite form)
Some babushkas, those who are grumpy and displeased with everything, may be not so polite:
Вы только посмотрите на него, расселся тут! Ну и молодёжь нынче пошла! Тебя что, в школе не научили старшим место уступать?
Some typical rants of some communists:
Довели демократы (or Гайдар с Чубайсом) страну!
Всю страну разворовали демократы!
Вот при Советской власти … [insert anything what is not good now but allegedly was good in Soviet times]
like Вот при Советской власти разве такие были цены!
(another variant is "при Сталине" but note, that not all communists are stalinists)
Oh, almost forgot, true communists are never drunk.
Hope that'll be of some help.