1) The document discusses five types of speech styles: frozen style, formal style, consultative style, casual/informal style, and intimate style.
2) Frozen style is the most formal communicative style used in respectful situations or formal ceremonies. Formal style uses formal words and expressions. Consultative style uses listener participation and feedback.
3) Casual/informal style is used in conversations between friends and involves shared background information. Intimate style, used between close people, has an economy of words and nonverbal communication.