I assume you mean R F while in Book [TAB] : R (previous part) , F (next part)
This can be used when seeing the arrows at bottom corners, check the examples bellow
I hope this helps,
Cheers,
~NK
You mean the blue haired girl ? you need to find her gloves, crouch and pickup, then the same for her weapon.
If you find yourself lost try checking the Book [TAB], select the quest you're interested in (W S keys) then press Enter - Nishy will turn towards where you must go + a blue beam of light will appear at target spot
Cheers,
~NK