In general, highly-skilled manipulation without instruction is difficult. Recently there are some works which apply the manipulating guidance by a Virtual Reality (VR) or Augmented Reality (AR) head-mounted display (HMD) to keep the user hands-free. Henderson et al. [Henderson and Feiner 2009] applied AR to armored vehicle turret maintenance. With a head-worn display, the mechanic could acquire steps in the form of texts, images and animations. Our previous work (My Tai-Chi Coaches) [Han et al. 2017] used optical see-through HMD for Tai-Chi Chuan (TCC) augmented learning tool. Although it can provide the user visual hints such as virtual coaches, the visual hints which the user can see are constrained to the small augmented FOV of the HMD.