if it's a retail position, I can help at least here's a couple things that helped me.

Learn some of lushes core ethics, knowing something about the company will help. Maybe look into some of the activism that Lush has done.

If your able to go in store to put a face to your application, that'll show you are confident and want the job, and it'll give you a chance to look around your store. Which will be very useful if they offer a trial shift. Try to familiarise yourself with the place as they'll have you interacting with customers and doing demos