I have a party with celeb attendees tomorrow, how do i make a good impression?

So this is an event where i’ll be introduced to a few of the VIP guests and it would be incredible for my business if i’m able to hit it off and talk about my brand.

However i’m quite socially anxious, i have no idea how to introduce myself and also not look like a fan but also be enthusiastic.. i also don’t know anyone there.

Any advice would be greatly appreciated!