when are you sure to have a "click" ?

sometimes i have the feeling i want to tell a way too much.
but then for the other person it'll be so weird, so i keep myself closed.

is this a sign of friendship or not? how to be sure the person thinks the same about you? he said he saw me as a sis, because i was such as "sensitive" as her.

at our last conversasion on the phone, i just asked my questions and it was all rehearsed because i wanted to ask him if i had to be emberassed. he keeps telling me over and over again all the time we spend together i don't have to. i think that means something. tho i feel bad about it, and i hope to once grow a friendship with him and im not sure if i can since he's a careprovider.

I don't know the exact details of your situation obviously, but as a guy I always preferred direct questions. Trying to figure things out based on body language and such is akin to mind-reading. Better to be forward and direct to avoid confusion.