But the closer she got, the more her expression began to change.

Different expressions began tumbling past one another on her face.

As he did so his expression began to change, first to astonishment then to understanding.

As before, the expression began and ended at his mouth.

The expression began to come back into her face.

Then an expression of excitement began to grow on her thin face.

More recently, a few high-end expressions have begun to appear.

A long, slow expression began to unfold on his stone face.

Harry's expression began to relax for the first time in Nicholas's company.

A very odd expression in her eyes, gone before he could begin to try and identify it.