Electric Flosser, Tips needed :)

Good morning all

I have got my very first switch session coming up and the girl i'm playing with has never had an electric flosser used on her before,

So I was wondering if you guys could give me some tips of where to use it/what to use with it?

Also do you guys think it would work on the palms of her hands? (With a bit of oil first ofcourse)

Cheers in advance

Dave

Obviously the toes and in between them, as well as the balls of the feet.
J find they are also very effective on the hips and panty line, just dont have a preference for using them anywhere other than the feet because my fingers cant be effective between the toes. That's why I'd prefer to just use them and feather for that