Ключевые слова: action, application, business, communicate, communication, concept, connection, digital, digitally generated image, education, electronic, express, expression, expressive, finger, gear, gesture, gesturing, hand, hand sign, human, icon, idea, illustration, interactive, interface, language, message, mobile, palm, part, person, personal, pointer, press, sensory, showing, sign, simple, symbol, thumb, use,