1. She nonchalantly flicked her hair over her shoulder as she walked down the street.
2. He nonchalantly shrugged off the criticism and continued with his work.
3. The thief strolled out of the store nonchalantly, without a care in the world.
4. She nonchalantly sipped her drink as she listened to the gossip around her.
5. He nonchalantly mentioned that he had won the lottery, as if it was no big deal.
6. She handled the difficult situation with a nonchalant attitude, surprising everyone with her calm demeanor.
7. The actor walked onto the stage nonchalantly, as if he owned it.
8. The cat strolled into the room nonchalantly, completely unfazed by the chaos around it.
9. She nonchalantly tossed the keys on the table, not realizing their importance.
10. He nonchalantly dismissed the rumors about his personal life, refusing to engage with the gossip.