monkey see, monkey do

Monkeys are known for imitating others.

monkey see, monkey do

1. A conventional explanation for mimicry, especially of a foolish action done with no consideration of the consequences.
   • 2003, Eminem (lyrics and music), “Monkey See, Monkey Do”, in Straight from the Lab:

     Monkey see, monkey do / Don't ever make the first move, just let 'em come to you

• monkey see, monkey do on Wikipedia.Wikipedia
• Eric Partridge (2005) “monkey see, monkey do”, in Tom Dalzell and Terry Victor, editors, The New Partridge Dictionary of Slang and Unconventional English, volumes 2 (J–Z), London, New York, N.Y.: Routledge, →ISBN, page 1315.