And now, Words and Their Stories, from VOA Learning English.Today we talk about something that you might take for granted.You might not think about them or appreciate their value and worth. Your feet!We just expect them to be there when we need them.But our feet are very important. And they have managed to walk right into many English expressions. Let's talk about some.First, let's put our best foot forward.This means you act in the best possible way to show your best possible self.Sometimes we do this to impress others. But sometimes we just want to do the best job we can or be the best person we can.At work, people who put their best foot forward, work fast and do the job well.Here's another foot expression: To start off on the right foot.