How to say "she crossed her arms" in Spanish?

I need to know the jist of how you would say that one has crossed their arms in Spanish.

For example: She crossed her arms or He folded his arms.

The sentence I am trying to translate goes like this:

Maddie crossed her arms and watched.

But I would also like an idea of how to use it in other conversations as well. Any and all help would be appreciated but please don't use a translator. If I wanted Google Translate I'd do it myself.