on their best behavior

idiom

: exhibiting proper behavior

The children were all on their best behavior at the museum.

Examples of on their best behavior in a Sentence

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Whether this kind of 24-7 surveillance of everyone and everything means law enforcement will automatically be on their best behavior is, however, debatable. —

Christiaan Hetzner, Fortune, 17 Sep. 2024 Also Tuesday, a famous bulldog sat pretty on the convention stage, Speaker Mike Johnson (R-LA) impersonated Trump, and Texas delegates were asked to be on their best behavior. —

Marisa Schultz, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 17 July 2024 Days before the wedding, Bones joked that Stanley and Eller would need to be on their best behavior to be included in the special day. —

Tamara Palmer, Peoplemag, 26 May 2024 There is a difference between letting the best in people express itself and keeping people on their best behavior. —

James Poniewozik, New York Times, 24 May 2024 See all Example Sentences for on their best behavior

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“On their best behavior.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20their%20best%20behavior. Accessed 23 Nov. 2024.

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