I think some cultures are definitely more social/cooperative and some less, and Brazil and the US may be on opposite ends. I also think the US may be having a social crisis at the moment.

But my guess is that in Brazil many of the things in this list are things that party host(s) (and their circles) are doing, intuitively and without thinking about it. Or different things with similar effects.

I didn't see anything in the OP about anyone comparing party quality or hosting abilities.

But when you go to a party and it's a great party, often it's because someone put effort into it. The better they are at it, the fewer people might notice. and it might come naturally to them, maybe they never had to make a list like this (a very particular kind of brain, sure). But a succesful party (where people enjoy themselves and it feels good) has people putting energy into making it vibe. Again, perhaps inuitivley and naturally and because it's something everyone learns how to do organically in a society. But I'm gonna guess this is true in Brazil too.