Long press home button to enter Google Assistant function.
Press Back key to return to the previous screen you were working on.
To choose an icon or option, touch it.
Open special functions or additional options. Try it: From Application menu, touch Music icon
to enter Music library, then touch and hold an artist, a song, or an album, some options will be
To scroll through a list or move slowly, drag across the touchscreen. Try it: on the Home screen,
touch Contacts icon to enter contacts list, you can drag contacts list up or down to scroll list.
To slide by moving your finger left or right on the touch screen quickly. Scroll through a list or
move quickly, slide across the touchscreen (drag quickly and release).
Touch quickly twice to zoom in/out. For example,double-touch a picture in Gallery to zoom