Talk, don't yell!

I've met many people who are great at parenting. One such person was the friend who talked to me about consistency. When helping me parent my child he would sit the child down and talk to him at eye level, making sure the child looked at him while conversing. During the conversation he would talk about what had happened and what changes could be made to give us all a better outcome.

The talks wouldn't go for too long because if the conversation drags on the child becomes bored and the point will be lost.

This is how I've dealt with children since.