It's got a face, but no body

When you see a little girl hiding behind your bed, but it turns out that you overreacted and she's actually just a normal ass kid.

Spaghett the Bear: It's got a face, but no body!

Goldilocks: Hahahahahahaha! Oh hello! I just dropped in!

Spaghett the Bear: YOU GO HOME!

Got a face on

To be in a bad mood; be grumpy.

An alternative way to say 'cob on'.

Eee, she's got a proper face on', her
Oh my god, what have you got a face on for?