Indesign Double Side: What Do I Need to Know?

Barely conversational in InDesign language.

Im trying to create a file where it shows 2 pages, that will eventually be printed as a double-sided sheet.

Im using InDesign CC, OS X, 10.9.4.

I have already created the first page. (And Im trying to figure out how to copy the first page exactly to make the second page--making a document in english, and then german on the other side. They should be exactly the same, other than the text).

What do I need to do to copy the first page to make the second? What particular settings do I need to have so this should be no problem for the printer?

Thank you!