coyish

/ˈkɔɪ.ɪʃ/
adjective
  1. Having a shy or modest manner, often in a playful or slightly flirtatious way.
    • Her coyish smile made everyone in the room wonder what she was thinking.
    • The puppy's coyish behavior—hiding behind its owner's legs—was adorable.
    • He gave a coyish shrug when asked if he had written the poem.
Antonyms
What does "coyish" mean? | whatsthatwordmean | whatsthatwordmean