bright-eyed and bushy-tailed

/B R AY1 T AY0 D AH0 N D B UH0 SH IY0 T EY0 L D/
adjective
  1. 1

    Eager, alert, enthusiastic, and lively.

Source: https://en.wiktionary.org/wiki/bright-eyed%20and%20bushy-tailed