B.C.
Look what a cool sound I can make, Mommy! I think they all go through an experimental stage when ever they learn a new skill. It's tempting to get ear plugs. When my son would start acting up in the super market, I'd get really close up to his face and try to interest him with my hands and talk to him quietly, and maybe tickle him a little. I could almost always get his attention. The only time it wouldn't work was if he was over tired or hungry. He'll grow out of it soon enough.