Qriosity
Be yourself. That's why they went on the date with you in the first place.
Now get the ******** out of this forum, you're in the wrong one.
You are not a moderator as far as I know.
As for the first date: OMG Fukking exciting!!!
Am I too late yet? If not... okay pfew! Take a deep breath and realize that whatever happens, you'll probably have clothes on by the time you leave the house. So that will work itself out somehow.
As for things to talk about: Easy! If your a lil shy like me, copy and paste this trick: Be supercurious about whatever he tells you about. That way he'll feel interesting and encauraged to talk more. I'm sure somewhere in that conversation you'll find a common ground and you'll be good for the rest of the night.
Aaand last bit: smile a lot! If he feels like you're having a great time will make him more at ease too. You're probably not the only one with anxiety.
Have fun love!