We do not see the frame directly, but infer its presence by its characteristic expressions and language.

By analogy, the word "signature" may be used to refer to the characteristic expression of a process or thing.

The characteristic expressions of the dialect are usually inspired by the peasant and pastoral world.

She flashed the smile of reassuring optimism that is probably her most characteristic expression.

It has a characteristic expression showing intelligence and alertness.

I miss a rather characteristic expression of yours.

He was making eye contact now while he assumed his characteristic condescending expression.

But suddenly it seemed vitally important that he should know the boy's characteristic expression.

America had found its 'characteristic expression' and had arrived 'at a point of creative intensity' through popular culture.

Thanks to such characteristic expression, he built up deep-rooted popularity in the mid-1980s.