Having a Little Attitude
Why you shouldn't ignore it: You may not think your child is going to roll her eyes or use a snippy tone until she's a preteen, but sassy behavior often starts when preschoolers mimic older kids to test their parents' reaction. "Some parents ignore it because they think it's a passing phase, but if you don't confront it, you may find yourself with a disrespectful third-grader who has a hard time making and keeping friends and getting along with teachers and other adults," Dr. Borba says.
How to stop it: Make your child aware of her behavior. Tell her, for example, "When you roll your eyes like that, it seems as if you don't like what I'm saying." The idea isn't to make your child feel bad but to show her how she looks or sounds. If the behavior continues, you can refuse to interact and walk away. Say, "My ears don't hear you when you speak to me that way. When you're ready to talk nicely, I'll listen."