Someone in the southern hemisphere would also see a full moon when someone in the northern hemisphere sees a full moon.

Here's why:

* Lunar phases are global: The phases of the moon are determined by the relative positions of the sun, Earth, and moon. These positions are the same for everyone on Earth, regardless of their location.

* Perspective: While the moon's position in the sky might appear slightly different depending on your latitude, the overall phase (full, new, crescent, etc.) will be the same.

So, everyone on Earth experiences the same lunar phases at the same time.