Flooring - carpet
Colors - soothing (earth tones)
Lighting - soft
Overall, you want to create a warm, cozy, inviting space so they won't say "office" right away. You should also stage it as a bedroom so they can see that it fits the furniture and can be practical despite being a little quirky. You might also consider playing up the funkiness, by decorating to stay with a funky feel - they might just love it!... more
Pricing and Quality Marketing. First and foremost, be honest with yourself about price. This doesn't mean to given your home away with a deep discount, but it does mean don't over-price it. And, a solid marketing plan. Professional photographs are a must. Honest and accurate information on the MLS and any printed materials. Good karma, a sense of humor, and a little luck.