Category,Code,Item Label,Definition (EN)
Speech-related,hs1,rhythm,Rhythmic vertical movements naturally occurring during speech
Speech-related,hs2,emphasis,Salient single nod aligned with vocal accent for emphasis
Speech-related,hs3,completion,Single nod signaling utterance completion at turn end
Speech-related,hs4,turn-yielding,Vertical nod directed toward the next speaker for turn yielding or prompting
Speech-related,hs5,confirm response,Small movement with gaze maintained for reaction checking
Speech-related,hs6,ask for agreement,Vertical movement at tag-question timing for implicit agreement seeking
Speech-related,hs7,question,Nodding at the end of a neutral or open question
Speech-related,hs8,think to speak,"Movement during speech reflecting thinking, word search, rehearsal, or self-reflection"
Speech-related,hs9,unsure about speaking,Movement accompanying hesitation or lack of confidence before or during speech
Speech-related,hs10,signaling,Attention-getting movement directed toward another person
Speech-related,hs11,self-affirmation,Self-affirming movement reflecting confidence or internal acknowledgment
Speech-related,hs12,acting,"Expressive, enacted, or gesticulatory movement within speech"
Speech-related,hs13,repair,"Movement for repair, revision, negation, or supplementation of one's prior utterance"
Reaction,hr1,back-channel,Vertical nod accompanying backchannel listening
Reaction,hr2,response,"Response movement to another's question, prompt, or address"
Reaction,hr3,ask to repeat,Repetition-request movement for previous speech
Reaction,hr4,turn-taking,Nod signaling acceptance or active acquisition of the next turn
Reaction,hr5,thinking,Movement while trying to understand or formulate a response
Reaction,hr6,understanding,Movement indicating understanding or acceptance
Reaction,hr7,uncertain,Neutral uncertainty due to unclear meaning or inability to answer
Reaction,hr8,doubt,Doubtful or distrustful reaction to the speaker's utterance
Reaction,hr9,surprise,Surprised reaction movement
Reaction,hr10,puzzlement,Puzzled or confused reaction to the utterance
Reaction,hr11,affirmation,"""Yes""-type nod including acceptance, agreement, or approval"
Reaction,hr12,negation,"""No""-type movement including rejection, disagreement, or refusal"
Other,hc1,positive emotion,"Positive affective display such as empathy, liking, or admiration"
Other,hc2,negative emotion,"Negative affective display such as discomfort, anger, sadness, or fear"
Other,hc3,inattentiveness,"Boredom, inattentiveness, mind-wandering, or post-turn relief"
Other,hc4,encourage speaker,Listener movement encouraging or pressuring continuation of speech
Other,hc5,synchronization,Intentional synchronization of movement timing with another person
Other,hc6,prosocial,"Greeting, bowing, gratitude, apology, or acknowledgment movement"
Other,hc7,laughter,Movement accompanying audible laughter
Other,hc8,gaze shift,Movement accompanying gaze shifts
Other,hc9,other,Habitual or idiosyncratic movement
Other,hc10,unknown,"Initial state, undetermined interval, or low-confidence label"