 Then at a winter dance festival to which many clans and neighboring tribes are invited the spirit of the man-eating giant is evoked and the initiate is brought in wearing spruce bows and gnashing his teeth and even biting members of the audience.In a symbolic gesture of pacification, rattles are shaken by he'liqa (healers).These rattles, often in the shape of a human skull, are also used to announce the entrances of dancers.