This may refer to jobs that require contact with customers.

It requires high heat and constant contact with the cooking surface.

An interface that only required physical contact with the walls of the machine, and a guy who knew how it all worked.

"The alternative is a process that requires constant contact at all levels so people understand where we're coming from," he said.

Getting the disease is hard, since it requires close contact with someone who has it, over a long period of time.

Therefore, such places as this did a fair amount of work requiring personal contact.

Healing touch does not require contact between the practitioner and the person during treatment.

They usually use weapons that require close contact with the victims, such as knives or hands.

And it doesn't always require actual physical contact to elicit such a response, either.

Indeed, some applications require contact between the material and the hot gas.