When you talk in French, there are big differences between formal and informal language. Let's break it down:

1. Vocabulary:

• Formal: This means using fancy words and complete sentences. For example, saying “Je vous remercie,” which means “Thank you.”
• Informal: Here, you use more casual language, like slang. So, you might just say, “Merci!” or “C’est cool!” which are more relaxed ways to express gratitude.

2. Pronouns:

• Formal: You usually say “vous” when you want to show respect to someone.
• Informal: With friends, it’s common to use “tu,” which feels more friendly and casual.

3. Structure:

• Formal: You make complete sentences that follow proper grammar rules.
• Informal: Short phrases and run-on sentences are okay to use. It’s less strict.

4. Tone:

• Formal: The tone is polite and serious.
• Informal: The tone is friendly and relaxed, making it easier to connect.

Knowing how to switch between these styles can make your conversations better and help you understand French culture more!