When you do ring do not over stress you are new and nervous, some play that game to get talking for a longer time then dont book.
When you walk into the room that is the time to say it is your first time with a naughty lady, careful, some love that and devour the innocent
Read the profile, fees, favourites,know the body type.
Asking questions about any of the above shows you have not read the profile and have no clue who you have booked.
Decide who you want to see or do you want all the chocolates in the box
experiment if thats your thing and enjoy.
Go in say hello, a brief chat to make sure this is the person you spoke to on the phone and the profile matches the person.
All good hand over the fee without being asked and go shower then let the games begin
Enjoy and repeat.