In Spanish, "tú" is a friendly way to say "you." We use it when we're talking to friends, family, or people we know well.

Here are some important times to use "tú":

1. Casual Situations:
   Use "tú" when you’re with friends or younger people.

   • For example: "¿Tú vas al cine?" (Are you going to the movies?)

2. Family:
   Always use "tú" when talking to family members.

   • For example: "¿Tú quieres comer?" (Do you want to eat?)

3. Talking to Kids:
   Use "tú" when you chat with children.

   • For example: "¿Tú tienes juguetes?" (Do you have toys?)

Remember, using "tú" shows that you are friendly and close to someone. On the other hand, "usted" is a more formal way to address someone.