that's you. they have never met anyone outside of their enclosed circle before. they don't know what electricity or technology is. they live in wooden huts, are hunter gatherers and speak in their own niche language.
what do you first piece of western technology do you show them to blow their minds? an iphone? a torch? a camera?
i would give them an ipod and play them some techno, to see if the 4x4 beat really is as innate as i think it is