I don't have much experience, but I think doing research can add to the session.  Being comfortable with someone is important.  Personally, I like a confident lady that will take control and be the leader and then allow me to set the pace.  She needs to have confidence and doing research can help.  Find a connection and keep the lady close.  To me it is the lady that sets the perfect session.  Early in the hobby, I think I found  a keeper.  Keep looking and happy hunting!

Most sessions start off with some idle small talk. When there is some chemistry that transition seems natural and very sexy. When its not there it seems a little awkward and can put a little damper on the mood. The transition can't all be put on the provider, we as clients need to read the signs verbal and nonverbal, make the girls feel comfortable, say the right things etc...Kinda like dating in real life.

communicated timely, she smiles and then that little giggle that usually means 'it on'.  After that its bliss.