Pretending you don't care when he mentions that he has two tickets for the hottest show in town, or nonchalantly shrugging when the Cindy Crawford look-a-like says she headed to the local coffee shop "alone".
"Well," he commented nonchalantly, "It's none of my business."
He shrugged nonchalantly, but his gaze rested on her thoughtfully for a few moments before he finished his meal.
"Supper's ready," she announced nonchalantly.
She shrugged nonchalantly, snapping a dry vine off and examining it as though unaware of the mockery of his question.