GESTURES FOR FREE-FORM SYSTEMS

These are common gestures used mainly in environments and new devices. To see some of these gestures in action, refer to Chapter 4.

HEAD

HEAD COCKED

The head tilts to the left or right without turning.

Possible uses.

Changing perspective on-screen; moving a cursor left or right.

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TILT UP/DOWN

The whole head moves up or down but not up and down quickly (see Nod Yes).

Possible uses.

Changing perspective on-screen; moving a cursor or slider up or down; flipping a switch; scrolling up/down.

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TURN LEFT/RIGHT

The head turns so that the face becomes a profile and remains there (see Shake No for a similar movement).

Possible uses.

Moving an avatar left or right; moving a cursor or slider left/right; scrolling left/right.

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NOD YES

The head moves up and down in an affirmative movement. Note that this motion does not signify "yes" in certain parts of the world, such as the Middle East; in fact, it signifies the opposite.

Possible uses.

Choosing an option; rapidly scrolling up/down.

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SHAKE NO

The head shakes left and right as a negative gesture. Note that this motion does not signify "no" in certain parts of the world, such as the Middle East; in fact, it signifies the opposite.

Possible uses.

Rejecting an option; rapidly scrolling left/right.

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TORSO

STANDING

The body is in an upright position.

Possible uses.

Returning to the default; changing modes (e.g., when shifting from sitting); turning on/off.

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SITTING

The top half of the torso is erect while the legs are folded to accommodate resting on an object, such as a chair.

Possible uses.

Changing modes (e.g., when shifting from standing); turning on/off.

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LAYING DOWN

The body is in a prone, horizontal position.

Possible uses.

Changing modes (e.g., when shifting from standing); turning on/off.

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RECLINING

The body is in a nearly horizontal position, with...