Daddy

Joshua loves to talk, most of the time we don't understand what he is saying. However, there are certain words that he uses all the time. Dog, Good Doggie, Bird, Duck and Daddy. It used to be that he would say Mom all the time, not so much now. Recently, he has found it quite funny to call me Daddy. He will look at me and say Daddy, I say no Mommy, he laughs and says Daddy. This has been going on for a few days now and every time he finds it quite funny. Since I think he is brilliant, I think he knows what he is doing, why else would he laugh? Hum, need to figure out how to correct this one.