She seems like she’s in good spirits (as does the guy in the back), but I could see that being either because they’re all in on the joke together or because she’s super excited to have the chance to flick off a politician she hates and has been joking with her friends about it. Like, I could see reacting like that if I ran into George W. Bush, but it’s more fitting within the actual context.

I think what tips it over into friendly is that she’s right there. Especially for a former politician (not accurate, but what I originally thought), someone getting that close and being antagonistic would probably be received as more threatening. Though I suspect there’s a lot more wiggle room for that in Australia than in the US, because of guns (which doesn’t even make sense, because the point of guns is hurting someone from a distance, but it might just be the view of any given person as potentially very dangerous) and the culture around politicians.