It isn't the This-Determines-The-Rest-Of-Your-Life-Test.
If it isn't fun or it doesn't give you a scar, it isn't worth doing anyway.
Don't try to be someone you are not. You'll set yourself up for a fall.
Do try to have fun. As in be relaxed and enjoy yourself. If you don't connect, so what? There will be another date another time. Best thing you can do is enjoy the experience. Be open minded. Don't make this more than it is.
You are meeting a person for a date. Nothing earth shattering. Be kind and nice and thoughtful... and have fun, if I haven't said it enough times.
I've wasted enough dates trying to do the "right thing". If only I would have not made it into something it was not.
This isn't the biggest date of your life. It's the first.
You learned to ride a bike by falling down. Its part of the process. This is absolutely no different.