Whatever her motivation, Ms. Pataki is a determinedly cheerful presence.

Wendy is determinedly cheerful as she goes about her various self-assigned tasks.

She said, determinedly cheerful, "I know he'll be happy with you.

"I knew if they found you, you'd be half-frozen," she said in a determinedly cheerful voice as she reached for Elena.

She went on, in the same determinedly cheerful voice.

Her voice was loud and determinedly cheerful.

He rested his hand on the knee of a fat and determinedly cheerful redhead sitting next to him.

"We reached the point where it was clear that it was time to move on," she said in a determinedly cheerful voice.

She went and finished her packing and joined him for lunch, determinedly cheerful.

She swept the mugs into the sink with the briskness of an early morning east wind, and turned a determinedly cheerful face to him.