Shiftiness used in a sentence

Shiftiness in a sentence as a noun

If they included 3, yeah, that would reek of shiftiness.

Quite frankly, the simple fact that they have the screen space to lay out keys in a sensible way made up for the shiftiness.

There's so much shiftiness in there, and it's probably the first thing I've seen that could prematurely abort SC.

Also, not "Raped in the ***" prison time, just a mellow 3 days to contemplate their shiftiness locked in a comfortable room.

> Your enormous shiftiness around this issue demonstrates clear mens rea.

Okay, so 'shiftiness' is independent of appearance as measured other ways, but what is it exactly?