Now, before Oh, my. What a striking costume. Before you go up on the floor, I want to give you a few tips on how to be a good Santa Claus.

9 seconds sound clip from the Miracle on 34th Street (1947) movie soundboard.

You can hear this line at 00:14:54 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, I don't know. It's...

- When I give packages to little kids, I like to watch their faces get that Christmas look all of a sudden. It makes me feel kind of good and important.

- I had my daughter and her kids over for dinner last night.

- There you are. There you are!

- Good morning.

- Now, before Oh, my. What a striking costume. Before you go up on the floor, I want to give you a few tips on how to be a good Santa Claus.

- Go right ahead.

- Well, here's a list of toys that we have to push. You know, things that we're overstocked on.

- You'll find that a great many children will be undecided as to what they want for Christmas. When that happens, you immediately suggest one of these items.

- You understand?

- I certainly do.

- Good.

[...]