I recently got asked out by a really cute boy I know - what should I wear and say?

So, like I said, I got asked out by a cute boy. I don't like to brand myself, but if I did I'd be emo, goth, punk, or scene. I don't know what to wear or say to him when we go out! He's emo too, and we met at a concert. We share the same taste in music, films - people even say we look like siblings! We've talked about everything and anything, so I don't know what we should talk about. Also, he always sees me wearing the usual stuff - skinny jeans, sneakers, tight-fit band logo top, and hoodies. He always sees me with my hair and makeup exactly the same - my hair down over both eyes, eyeliner, mascara, and foundation. I'd love if people could tell me what conversations we should have, and if you could give me links to pictures for what I should wear? It's in one week, so I'd like advice A.S.A.P, please!