What To Wear on a Casual Date

Hi, everyone! Yesterday I got a really interesting email. It reads:"Hey, Lane. I'm Abby from...and yesterday the boy that I have loved for forever finally asked me out. He said that we're going to dinner (maybe Red Robbin or Olive Garden?) and a movie. I'm soooo nervous. Jeez Loueez, my hands are shaking as I write this! And I NEED help!! Can you give me any tips on what to wear? I like to wear