Personal Unions: I think it was... kind of just that, personal unions. Like, the thing with Hetalia is this part is kind of a grey area. If the characters were actually intimate (see: Austria-Hungary; even in their history their countries worked pretty well together) then it might be marriage. On the other hand, it could be classified as "marriage" but done for economic reasons, not the country's own personal prefrence. (Or we could always just be like WELL THE BOSS MADE ME DO IT and leave it at that, if we're feeling lazy.)
INVASIONS: Again, this one. Kind of works like personal unions. People can kind of see it how they want, I guess? I'd really prefer not sex though because just, ergggg that's a little much for most of the people here, ect. I would assume wars=fighting, because my own personal headcanon says that probably, they'd be fighting with their wars/with their soldiers.
UNICORNS: EVERYONE HAS FOLKLORE I think that one's up to the player, because it's not really cannonly-stated except for the few characters you mentioned, so... yeah. Never especially thought about that one.
HUMAN NAMES: I think of it as a more intimate thing? That's kind of the way I've been using it, like human names are their cover for when they need to interact with regular people and not get stared at, but between countries it's kind of like... seeing them as a person as oppose to just a landmass. For me, I kind of see it like using a human name would be like recognizing that the person you're talking to is also a person, not just a country.
/adds own two cents
Personal Unions: I think it was... kind of just that, personal unions. Like, the thing with Hetalia is this part is kind of a grey area. If the characters were actually intimate (see: Austria-Hungary; even in their history their countries worked pretty well together) then it might be marriage. On the other hand, it could be classified as "marriage" but done for economic reasons, not the country's own personal prefrence. (Or we could always just be like WELL THE BOSS MADE ME DO IT and leave it at that, if we're feeling lazy.)
INVASIONS: Again, this one. Kind of works like personal unions. People can kind of see it how they want, I guess? I'd really prefer not sex though because just, ergggg that's a little much for most of the people here, ect. I would assume wars=fighting, because my own personal headcanon says that probably, they'd be fighting with their wars/with their soldiers.
UNICORNS: EVERYONE HAS FOLKLORE I think that one's up to the player, because it's not really cannonly-stated except for the few characters you mentioned, so... yeah. Never especially thought about that one.
HUMAN NAMES: I think of it as a more intimate thing? That's kind of the way I've been using it, like human names are their cover for when they need to interact with regular people and not get stared at, but between countries it's kind of like... seeing them as a person as oppose to just a landmass. For me, I kind of see it like using a human name would be like recognizing that the person you're talking to is also a person, not just a country.
heeere's hoping that one made sense.