To know the address must not greet people with a speech saying that he will make people frustrated and embarrassed do not talk loud or not at all to squint eyes, eyebrows done, bad posture consists of personality.
Knowing how to speak Not Greet people with words that would make him a disgrace in society and not talk loudly or making gestures wink personality was so upset.
Knowing your conversation To greet people with words to make people's shame in society and not talk loud or make eyes at acting assembly until lose their personality.