Make sure you break in the tires. Usually it is recomended to have 100 easy miles so that the tires are properlly broken in.
Some common track rules:
Completely cover all lights and reflectors with tape; in a crash this will prevent broken plastic or glass from flying all over the track (painter’s tape works well)
Remove mirrors
Remove license plate
Wheel weights taped over (those little lead weights on the inside of your wheel, used for balancing); use duct tape
Tape over speedometer (because it’s a possible distraction)
I asume you have the proper gear.
Have fun!! Track days are awesome.