Happy Happy Happy

The other day, B was wearing a shirt that simply states, "Happy Happy Happy". It describes her very well. She was being very happy and full of smiles, so I decided to sing to her "If you're happy and you know it, clap your hands..." I got to the pause before you repeat it.... and she clapped! She clapped at each break after I repeated it! Now if you sing it to her, she generally claps through the whole thing with a huge smile on her face.