Me: Gestures are actions we do with our body to send a message. This one is called the sign of the cross. (show gesture in front of mirror while saying in the name of the Father, and the Son, and the Holy Spirit)
Child makes same motion while looking in the mirror
Me: What sign did we just make over our body?
Child: The cross
Me: What message do you think we are sending?
Child: The cross is over us so we remember Jesus has a home in our heart.