Click

From Styleguide

click

Verb or noun used to describe depressing a mouse button.

Do not use to describe pushing a button on a controller or a keyboard. A click can be a left-click (push of the left button) or a right-click (push of the right button). Left-click should only be used when it is necessary to differentiate from a right-click. A double-click is the press of a mouse button twice in rapid succession.

Example: In Unreal Tournament, left-clicking fires your main weapon, and right-clicking fires your secondary weapon.

Wrong: Click the A button to jump. clipping Technical.