Hi Toda.
I'm assuming that it is a Class Rating Proficiency check you are doing.
You will need your Licence, logbook, some form of official photo ID (if the examiner doesn't know you), and, if your Class Rating has run out, a Certificate stating that you have completed any required training, from the Head of Training of an ATO, or RTF.
The Examiner will print off the forms you need.
MJ