Examples:

• After a good night’s sleep, she woke up feeling bright as a button.
• The young boy, with his curious questions, proved he was bright as a button.
• Grandma may be 90, but she’s still bright as a button when it comes to solving puzzles.
• Dressed in her new outfit, she looked bright as a button at the family gathering.
• Despite the long flight, he appeared at the meeting bright as a button.
• The little girl, excited about her birthday, was as bright as a button all day.
• His answers in the quiz show were so quick and sharp; he’s truly bright as a button.
• Even in her old age, she remains bright as a button, always full of wit and charm.
• The detective noticed the child was bright as a button, quickly picking up clues others missed.
• She had just recovered from the flu but was already feeling bright as a button.
• When she saw her favorite dessert on the table, her face lit up, looking bright as a button.
• With his clever ideas during the brainstorming session, he stood out as bright as a button.
• Despite the tough times, she always managed to look bright as a button in her cheerful outfits.
• The toddler, learning words so quickly, is as bright as a button for his age.
• Even at 6 a.m., she’s bright as a button, ready to tackle the day.
• The new intern is bright as a button and catches on to tasks immediately.
• Everyone at the party noticed how cheerful and bright as a button she was.
• After her promotion, she walked into the office bright as a button, radiating confidence.
• His grandmother praised him, saying he was always bright as a button, even as a child.
• Dressed for her first interview, she looked polished and bright as a button.