Create different headers or footers for odd and even pages
By default, the headers and footers in Word are the same on each page. You often want something different on the left and right side of the document. Here's how:
Double-click the header or footer
Select Different Odd & Even Pages.
On one of the odd pages, select the header or footer area you want to change.
Type the document title, and then press Tab twice.
Select Page Number > Current Position and choose a style.
Select an even page.
Select Page Number > Current Position and choose a style.
Press Tab twice and type the document title.
Select Close Header and Footer or press Esc to exit.