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For a moment she looked blank and he took hold of her arm.

She looked blank and put the old photograph on the desk.

He was right - five or six people looked blank.

The first time I asked him, there was no response and his eyes looked rather blank.

But when I mentioned it to him he just looked blank.

There wasn't light, and I couldn't tell anything from her eyes, but looked absolutely blank.

It helped, a word here and there while we just looked blank.

I saw him look blank, like he was trying to place me.

He actually looked blank for a moment when I told him my news.

He looks completely blank, like a man who has just come into a room to get something but suddenly can't remember what.