Ключевые слова: closed, closed ears, complicated, concealed, confidential, cover, covering, cryptic, ear, eavesdropping, enigma, esoteric, gesture, gossip, hidden, hide, hush, important, limited, listen, mouth, mystery, not allowed, not hearing, overhear, peek, peeping, person, personal, private, privy, quietness, reveal, rumor, secrecy, secret, secure, security, shh, shut up, silence, silent, speechless, spying, unauthorized, uncover, vital, whisper,