You can't really.
You need to know too many "hidden" details in the mechanics to "enjoy" the game.

Just play line goes up:
>waiting, waiting, waiting
>woods, tools, iron, yaaawn
>quickly get bored of building; lazy fairy
>why do I care about rubber and oil? The game's going to end in 30 years
>"wait a second, the world is just a collection of autarkies?", "always was"

Just play politics:
>things just happen
>cuckolded by character ideology
>50% of wiki and web info is outdated or simply missing

Here for globohomo communism:
>#NotRealCommunism
>zero politicking
>no labour unions
>autocratic regimes are actually extremely stable
>factory owners aren't actually oppressive and everyone likes working in a factory (wages just go up, lmao)
>feminism has more content than communism

Here for the flavour:
>have to download a mod


If you look at reddit or anywhere people talk about this game it's basically:
>arguments over what is real communism
>genocide jokes
>"reverse" genocide jokes
>"Oh this game's easy I just use ten exploits, twenty mods and use console commands to annex whatever province I want... what do you mean half of those things were patched out over a year ago and I therefore haven't played since? Gitgud skrub, £24bn GDP can be done by a baby!"
>"As a communist republic I keep making the line go up and annexing the whole world but my proletariat won't stop being angry. I've tried oppressing them but I'm all out of ideas. Can paradox nerf the capitalist pigdogs again?"