Most that she knows at first hand comes from her sense of touch.

All were socialist, delighting Peter, who had only known of such people at second hand.

Those who knew him at close hand rejoiced his friendship.

I also at least theoretically knew the situation at hand better than anyone else.

He only knew at second hand the events leading up to Steve's escape, and was unaware of what had happened since.

She now knew, at first hand, that nothing written in a newspaper should ever be taken seriously.

I know at first hand what Darkness does to people's minds.

"You'll never know anything at first hand," he began, almost savagely.

There's quite a few people in the film who knew the situation at first hand.