Basic components
1. Introduction 2. Manual components a) Configuration b) Place b.1) Neutral space b.2) Around the head b.3) In contact with the body c) Movement d) Orientation 3. Non-manual components a) Facial expression b) Torso movement c) Head position and/or movement d) Mouth gesture d.1) Imitative d.2) Compulsory component d.3) Optional component (modifier) e) Mouthing
Some signs combine movement and trajectory with movement of the wrist or the fingers. "Lightning" "Piano" "Fish"