The overhead video board encouraged them to wave towels during a third-quarter timeout, but it seemed it was mostly missed or ignored, as there was no noticeable response.

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First responders and other personnel were greeted with loud cheers as they were brought onto the floor during timeouts, and a tribute to the city's strength played on the overhead video board during a first-quarter stoppage.

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The important thing is to back those points up, with another visual aid, even something as simple as hand illustrating your points on a white board or overhead projector.

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An initial investigation shows the 1, 111-foot-long bridge collapsed when a tractor-trailer hauling an oversized load hit one of the bridge's overhead tresses, according to Deborah Hersman, chairwoman of the National Transportation Safety Board, which is investigating the incident.

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Raichlen mans a demonstration table at the front of the room, and video monitors overhead use downward pointing cameras to give a close up view of what his hands are doing on the cutting board or with ingredients.

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