Question Gender change of my character?

[NLS]

For some reason in my own server I am female player.
Can I change that?
I think I am using an offline character (my online character is male and I know I can edit my profile in Mojang).

 

[MiniDigger]

Offline Mode is unsupported, in Online Mode you can easily change your skin to whatever you want.

 

[NLS]

But how did I end up being female? Is it random?

 

[Noah]

It's based on your account UUID, which when is random when using online mode, but is determined using your username when in offline mode (but which skin you get for which name is still random).