Her expression told me we were both thinking the same thing.
That, and their expression, told him everything he needed to know.
But the expression on his face told her that he had seen it already.
His expression told her that he had no idea of what she was talking about.
He would have asked when, had her expression not told him.
But his expression told me it was a bit late for that.
Her expression told him that she held out little hope.
Her expression told me that she wasn't sure about this.
But her expression told him that she might very well have found the thing after all.
Her expression told him this wasn't what she wanted to hear, so he tried again.