Sometimes parents forget that their child is just a child. They don't know any better than what they are taught and what they see and hear. It is a learning experience for both the child and you.
A well-behaved child does not happen over night.
It takes patience, understanding, and knowing it is a working progress. If you react negatively to your child's behavior, you will get a negative reaction from your little one. If your child lacks your attention, they will act up just to get any reaction from you! They are listening more than you think!!