There are two big ones: Talking too much and giving explanations that aren't needed.
Pay attention to how many words you're using. If you use too many words your child will just tune you out. If you've given your child the same explanation ten times and it's not resulted in your child listening or responding, than what makes you think the eleventh explanation will work?
Most of the time we think that if we can get our child to understand things from our perspective the situation will end in our favor. Children, especially one youngs, aren't capable of being rational. Yet we continue to explain things over and over with no results.
Use less words and speak using a calm, firm voice and see if your child responds to you.