1. Woman laughing with salad. Getty Images/iStockphoto EpicStockMedia You will need: A bowl of salad, a carefree laugh. 2. 404 Error funsubstance.com You will need: White t-shirt, sharpie. 3. Regina George Mean Girls/Paramount Pictures Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF You will need: White vest, colourful bra, burn book (plus points for Kalteen bar). 4. Arthur Dent Touchstone Pictures Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Touchstone Pictures You will need: Dressing gown, a cup of tea, and don't forget your towel. 5. A tourist thedisneyblog.com You will need: Bumbag, map, general air of bewilderment. 6. A bouncer. ladlesandjellyspoons.com You will need: Black trousers and jacket, sunglasses, (fake) earpiece, clipboard. 7. Walter White AMC You will need: Glasses, green shirt, large underpants, fake gun. 8. Nudist on Strike kaykatastr0phe.deviantart.com You will need: Clothes, a sign explaining that you are a nudist on strike, and a willingness to perhaps discuss unions. 9. Shia LaBeouf WireImage Luca Teuchmann You will need: Suit, brown paper bag. 10. The Dude Working Title Films You will need: Dressing gown, a White Russian. 11. Girl With A Pearl Earring en.wikipedia.org You will need: A large pearl earring, and some kind of head wrap. 12. Your own twin. Getty Images/iStockphoto kaktyc You will need: Your normal clothes, and a steadfast commitment to the joke. 13. Undercover police officer. 20th Century Fox You will need: Your normal clothes, an air of suspicion. 14. Holly Golightly Paramount Pictures You will need: Black dress, black gloves, cigarette holder, pearl necklace. 15. Angela Chase My So Called Life You will need: 90's clothes, a look of teen angst. 16. Where's Wally? kinnerton.com.au You will need: Striped red top, blue jeans, bobble hat, glasses, walking stick. 17. A muggle. Getty Images Andy Kropa You will need: Your normal clothes. Bonus points if you bring a Hogwarts acceptance letter.