Grinning vacantly, Tom allowed Ralph to brush off his shirt and pants.

Each time a sparrow passed by he would grin vacantly and strike up his song.

She grinned vacantly and popped her gum.

The Piggy grinned vacantly at me from my hand, as simple and artless as a child's drawing.

All that remained of the Model 99 airbus was one angel lying face up on the splintered pavement, grinning vacantly at the sky.

Martin Bliss, grinning vacantly, stood near the bar.

And then with a frightful convulsion he stiffened and lay grinning vacantly at the shadowy ceiling.

Inel grinned vacantly, making Bruce wonder whether brains were a prerequisite for the top job on Skid.

She was lying wide-awake, rolling her head from side to side, and grinning vacantly.

After a few moments, one of them sauntered over towards her and grinned vacantly.