He had done his job too long not to know the signs.

Do you know the early signs of an asthma attack?

I've studied the subject and I know all the signs.

He was attracted by her; did she not know the signs?

I'd lost enough blood over the years to know the signs.

I know the signs - when a woman is leading me on.

She'd had to give this news to far too many people in her career, and she knew the signs.

His eyes missed little, and he knew the signs of love.

There's no point in having money if you don't show it, and I know the signs.

He wasn't in a fighting stance yet, but I knew the signs.