Double tap

Touch one finger on the screen twice in rapid succession.

Example of when to use this: Zooming in.

Drag

Put one finger on the screen and move it across the screen.

Example of when to use this: Scrolling a screen.

Flick

Flick the tip of a single finger across the screen.

Example of when to use this: Scrolling a big distance on the screen.

Press and hold

Put one finger on the screen for more than 0.5 second.

Example of when to use this: Selecting an item, or opening a pop-up menu for an item.

Pinch to zoom

Touch the screen with your thumb and a finger. Move them apart to zoom in or move them together to zoom out.

Example of when to use this: Zooming in and out on the screen.

Tap or select

Tap a single finger on the screen.

Example of when to use this: Selecting an item in a menu, or opening an item.