* The cat slyly watched the bird from behind the curtain, waiting for the perfect moment to pounce. (Implies cunning and stealth)
* She slyly winked at her friend across the room, signaling that she knew a secret. (Implies a playful or mischievous secret)
* The salesman slyly slipped the extra warranty into the paperwork, hoping the customer wouldn't notice. (Implies deception or trickery)
* The detective slyly questioned the suspect, hoping to catch them in a lie. (Implies cunning and subtle questioning)
* He slyly maneuvered his way through the crowded party, avoiding the conversation he didn't want to have. (Implies cleverness and evasion)