You can tell it's hot - She's glowing like a pig.

For those that will probably never get the "incrowd joke" - that in Australia there was a joke going around a LONG time ago.

It went like this:

Man A says, "She must be hot, she's sweating like a pig".

Man B says, "Women don't sweat, they glow".

Man A then says, "Yeah she really must be hot, she is glowing like a pig".