3. If you make a mistake, say “sorry.” If someone asks you something, and you cannot do it, apologize saying “I’m sorry I can’t ….” Or “I’m afraid I don’t know…”
10. If you are using the escalator, and you are not in a hurry, stay on the right side. If you are in a hurry, use the left side. The left side is always for people who want to walk or move, not stand.