put one's best foot forward

Idioms  

1. Try for the best possible impression, make a good start, as in Come on, let's put our best foot forward for this interview. The allusion in this idiom is unclear, though it may concern marching. One theory is that best foot means “the right foot,” the left being regarded as unlucky. [Late 1500s]

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Example Sentences

But I wonder if it’s possible to put one’s best foot forward in the digital age.

From The Guardian

It’s always helpful to put one’s best foot forward and be polite.

From Washington Times

That it is proper pride to put one’s best foot forward and keep an offending member well out of sight, that the man who wears a rosette in the button-hole of his coat and has half the alphabet galloping after his name, is an honor to his family.

From Project Gutenberg