The suspicious eyes will be all around you.

Perhaps it may be a tiny wood-mouse peering from under a root two or three steps behind you.

You have been perfectly still, say, for ten minutes, and the mouse is just beginning to think that you may be something quite harmless.

She rubs her whiskers, and is just about to come out when, as likely as not, you move your fingers a little, behind your back"-- here the Child blushed guiltily, and thrust both his grimy little fists well to the front--"feeling quite safe because you don't see the movement yourself.
"Well, the mouse sees it.

She realizes at once that you aren't dead, after all--in fact, that you're a dangerous deceiver.