Gestures and natural languages: Steve Cook & Ansgar Gerstner – YouTube #25 Double Tan Sau 詠春拳的雙攤手

Gestures and natural languages: Steve Cook & Ansgar Gerstner – YouTube #25 Double Tan Sau 詠春拳的雙攤手
Complex patterns of gestures: Steve Cook and Ansgar Gerstner – YouTube #15 Fok Sau – the crouching and hiding hand 詠春拳的伏手