how does Skype show you to yourself?

Skype on Mac OS X shows you, as if you look into a mirror – I find that rather “natural” and “usual”, just what I prefer.
Skype on Windows seems to show you “the other way round” – like other people see you.

If you are having a video conversation via Skype, you will occasionally look whether your face is still rather centered within the shown window. If you move or turn left and right and if that’s not shown like in a mirror, I find that weird.