Some people that are new to SFM might not know how to import sequences into a model, so yeah, let me explain how you can make your Hat Kid/Bow Kid dance.

1- Load Hat Kid or Bow Kid model into your scene.

2- The model name will appear. Right click it, go into Import > Sequence. Like this https://i.imgur.com/H5DP8M9.png

3- Change from idle to Smug_Dance. https://i.imgur.com/FvsB1Ko.png

4- Profit

have fun with the memes