Table 5.

Gesture categories and examples from data.

Gesture category	Example
Adaptor	Hand movements such as scratching one’s head, adjusting one’s clothing, clasping one’s hands etc.
	Body movements such as rocking forwards, backwards or sideways Postural adjustments such as slumping or straightening one’s back
Illustrator	Hand movements such as chopping motions to indicate a sliced carrot
	Head movements such as a head shake to indicate a tree with no fruit on it
Affect display	Eyebrow movements such as raised eyebrows to demonstrate surprise or furrowed brows to express concentration
	Mouth movements such as pursed lips to indicate thought Smiling or laughing during the utterance
Eye contact	Raising eyes from the screen to make eye contact with the Guesser