What is Australian slang for take it seriously?

How do you say let me introduce my friend in french? What was fashionable? What does Esperado que te estas portando bien? Is politeness and courtesy outdated in today? How do you write a letter to your friend inviting her to your house? How do you you write you're invited to a Russian dinner party? How do you welcome chief guest with flowers? Can you wear blue shirt with black blazer? What does it mean to give the little finger to someone? What is a usual way of behaving or doing something? What are the well-known phrases? Was Cleopatra rude? What is an informal name for master of ceromonies? What is the Farsi word for taboos? Why is Herman e calloway so mean to bud? Would a white tuxedo be acceptable for black tie attire? Do you write a thank you note after a scholarship interview? How do you you say aunty in french? What does the idiom its a small world mean? Is there a core of good manners that polite people of all countries recognize?