deictic gesture
「指示手势」，指点向或参照类手势，用来把听话人或观众的注意力引导到共享场景中的某个目标；语言学、认知科学与交互设计都会用到。
English Definition
"A pointing or referencing gesture (e.g., pointing at a location or object) used to direct a listener's or viewer's attention to a referent in the shared environment."
用法说明 · 针对中文母语者
源自语言学中的 deixis（指示）。HCI/UX 写作中常与 eye gaze、pointing 一起讨论，用于评估多模态交互中的注意力引导。
真实用例 · 4 条
"participants lose awareness of nonverbal communication cues omnipresent in face-to-face conversations, such as deictic gestures and eye contact."
"Deictic gestures in particular serve to direct a listener's attention [49], such as pointing at a location or object."
"with the convention of screen sharing visual aids in videoconferencing applications, deictic hand gestures, even when they appear in a speaker's video frame, are often ambiguous"
"the use of deictic gestures to direct an audience's attention to elements in the composited visual aids requires coordination and practice"