In the sidebar, go to Appearances >> Menus
Select Create a New Menu.
Type the name for your menu in the Menu Name field.
Click Create Menu.
In the Pages, Posts, or Categories box you can choose from a list of pages, posts or categories that have already been created to add to your menu.
Select the boxes next to the items you would like to include and click add to menu.
To add outside links from other sites, click Custom Links. Enter the URL and Link text and click add to menu.
Once all the items are in the menu, the items can be re-ordered by dragging them to the right creates sub menus for the item above.
To delete a menu item, click the arrow on the item that you would to remove and select Remove.
Click Save Menu.

Adding a Menu to your Site

In the sidebar, go to Appearances >> Menus
Select Manage Locations
There are two locations listed:
- Footer Navigation Menu
- Primary Navigation Menu
Choose the location and then choose the menu that you would to have displayed in that location.

Tutorial: Menus

Menu