Groove thinks there can't be a better way of saying hello than giving his tail a good old wagga-wagga - it's almost as good as a Hoobledigger! But how do the Tiddlypeeps say hello to their friends when they're really pleased to see them? They find out how Queens say hello and Roma even says hello to some rugby players but in the end the Tiddlypeeps teach them the nicest hello of all!
