The best things happen while you're dancing. Things that you would not do at home come naturally on the floor. (3)

16 seconds sound clip from the White Christmas (1954) movie soundboard.

You can hear this line at 01:25:09 in the Blu-ray version of the movie.

Quote context

[...]

- But don't you think we ought to kiss or something?

- Um... Not until it's absolutely necessary.

- Isn't it a wonderful party?

- Bob, would you like to dance?

- I'm game if you are.

- Hey, Betty. How about some exercise? Come on.

- The best things happen while you're dancing. Things that you would not do at home come naturally on the floor. (3)

- For dancing soon becomes romancing when you hold a girl in your arms that you've never held before. (3)

- Even guys with two left feet come out all right if the girl is sweet if by chance their cheeks should meet while dancing. (3)

- Mr. Herring, this is Miss Lennis.

- How do you do?

- Mutual, I'm sure.

- Bye.

- May I?

[...]