In Sri Caitanya-caritamrita it is explained that when Puri Das was born his father had brought him to Sri Caitanya Mahaprabhu. When Sri Caitanya Mahaprabhu asked the baby to recite “Hare Krishna”, the baby did not do so.
Everyone present around were shocked and upset at this unusual sight. It was unusual because even the animals could chant and dance when the Lord had asked them to, but this baby couldn’t.
Then Sri Caitanya Mahaprabhu placed His toe on the lips of the baby. Surprisingly in another occasion when Sriman Mahaprabhu asked the baby to recite the Hare Krishna maha-mantra, the baby not only recited it, but also eloquently sang the song of the glories of the Lord in a very scholarly manner to the greatest astonishment of all who were present.