sharing from baby center
When would a child say “no” to ice cream? When she’s a 2-year-old in defiant mode who’s enamored with the word “no.” Hearing the word a lot from your preschooler doesn’t mean she has a negative personality. Rather, she’s finding out that she has her own personality, and “no” is a good way to let Mom or Dad know she disagrees. Some twos get so entrenched in the word that it’s their favorite response, no matter what the question.