i interpret "delicate" as meaning she has difficulties with communication (shy?), and perhaps has some hang-ups that need consideration.

this is an interesting question for me - i find it very difficult to communicate what i like, even so far as blushing when i merely think about some things. i think a gradual build-up of trust is vital, by establishing a habit of openness; it's useful to include lots of talk about regular, everyday stuff, as this is non-threatening. in fact initially i would stay mainly with this ordinary stuff, become friends, and invest plenty of time before progressing to fantasy and desires. and of course, as Aibo says, adapt the method of communicating to suit her comfort, before gradually expanding... you are building from the ground up and shouldn't rush !

i guess security is an important topic for most "delicate" subs. she needs to feel very, very, secure to open up to you. let alone to address any hang-ups she may have. this means demonstrating honesty, openness, integrity and caring...

just my humble point of view