humorous to be full of energy and eager to do things.
She was bright-eyed and bushy-tailed the next morning, despite having been up half the night.
be bright-eyed and bushy-tailed
To be energetic and enthusiastic. After that nap, I am bright-eyed and bushy-tailed!As usual, the new interns are bright-eyed and bushy-tailed—just watching them is exhausting.