The more you pet this Beagle puppy, the more excited it gets with a wagging tail and joyful barking. In fact the puppy's tail starts to move faster, and it starts to bark louder and louder until you know for sure this is a happy puppy! The puppy's nose get cold to let you know that all is well. Make sure you are always petting and rubbing your puppy's belly or it will start to whimper and beg you for more love. Requires 3 "C" batteries and 3 button cell batteries (not included).