Ключевые слова: 3, 6, abc, alphabet, american, asl, background, body, care, closeup, communication, count, dactylology, deaf, disabled, education, english, female, finger, gesticulating, gesture, grey, hand, handicap, health, hearing, help, impaired, interpreter, language, learn, letter, manual, nonverbal, number, numeral, person, showing, sign, six, speech, speechless, spelling, study, symbol, three, translate, visual, w, woman,