Informal:
* "He gave me a cheeky grin and winked." (implies a playful, slightly mischievous smile)
* "She made a cheeky comment about my new haircut." (implies a lighthearted, potentially teasing remark)
* "The kids were being cheeky and wouldn't stop giggling." (implies playful, disrespectful behavior)
Formal:
* "The cheeky use of humor in his speech lightened the mood." (implies clever and slightly bold humor)
* "The company's marketing campaign was cheeky and memorable." (implies a bold, attention-grabbing approach)
Figurative:
* "He had a cheeky sense of adventure that took him to the farthest corners of the world." (implies a bold and playful approach to life)
* "The cheeky wind whipped through the trees, rustling their leaves." (implies a playful and mischievous movement)
The context of the sentence and the tone of voice will determine the specific meaning of "cheeky."