As an individual consumer with purchasing power you vote every time you buy a product or service. You also vote every time you do not buy a product or service from a company that chooses to remain in Russia, thus indirectly supporting its government’s war efforts.
As an individual consumer you can: boycott certain products or services; spread the word about them in your immediate social circles as well as on your social media profiles. You can also stage protests and rallies against certain companies that continue conducting business activity, thus supporting Russia’s war of aggression.