User's Manual Part 1

ANDROID QUICK START GUIDE WELCOME TO ANDROID
7
Overview
Opens a list of thumbnail images of screens you’ve
worked with recently. To open one, touch it. To remove
a screen from the list, swipe it left or right or touch
on the X.
Some apps hide these buttons temporarily, or fade them to small
dots in the same position. To bring them back, touch the dots,
touch the screen in the middle, or swipe up from the bottom.
Menus
Many screens in Apps and in Settings include a Menu icon at
the top right of the screen. Touch it to explore additional options,
including Help and Settings.