Just like the rest of the world does, by dressing up in costume.
However, a recent USA Today article stated that Russian government is hoping to ban Western holidays because of their bad influence.
"Russia is opening a new front in its battle with the West over last month's fighting in neighboring Georgia: a move to ban the Western holidays of Halloween and Valentine's Day as bad influences on the nation's youth.
The State Duma, Russia's lower house of parliament, will consider a measure this month to guard students from what the government considers destructive Western influences, such as the two festive celebrations that are growing more popular in Russia."
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Only russia
By Russian tradition, Halloween has been just a day in an Orthodox Church Calendar, and it is not celebrated like in USA.
They don't celebrate Halloween
they celebrate Halloween the same as Americans
I do not know if Kuwait celebrate Halloween.
The Native Americans did not celebrate Christmas or Halloween. The early colonists did not celebrate Halloween either, and most did not celebrate Christmas.
Yes, Lebanon does celebrate the holiday Halloween.
The answer is yes. They do celebrate Halloween in Germany
Yes, they do. I believe they celebrate Halloween parties.
Yes, people in Wales do celebrate Halloween.
65% or 75% because some children do not celebrate Halloween. and SOMETIMES do not celebrate both, not just Halloween.
No, many non-Christian people celebrate Halloween.