Only the flaring of his wide nostrils gave visual proof that he still lived.

"I wanted to have visual proof that I was trying to talk to them and they were blowing me off."

The Mayor hardly looked up to seek visual proof of agreement.

Many were reluctant to accept the news until they had some visual proof.

"It is the visual proof of what I feel in the park about being outside the city," he said.

"When we have visual proof they are not true, we become upset."

Not only had his mother held him, there was visual proof of it.

They now had visual proof of the faith they'd kept for ten thousand years.

Stroboscopic movies provided visual proof that while the two methods looked alike, under the surface they were different.

So, very late one night - with visual proof that he was sitting at his phone - I called.