السلام

Muslims greet each other with "As-salamu alaykum": it means "Peace be upon you". We answer: "Wa alaykum as-salam", "And peace be upon you".

Allah says in the Qur'an: when you are greeted, reply with a greeting that is better, or at least the same (4:86). A smile makes the greeting even nicer.

When you meet your teacher, your friends or your family, say it with a big smile.