The register, or formality level, of a conversation can vary greatly based on the setting. Thinking about your own life, what is the most informal register you use? Who is it with?
Can you give it a name, like "close friend informal" or "texting with Jo"? Now think of your
most formal register and give it a name, perhaps "church polite" or "speeding-ticket
respectful." Compare these two extremes with your everyday, usual register of speech.
Discuss how different or similar they are, how easy it is to switch registers, and how you
gauge the register of a certain situation.