Adding art to your walls can be a fun and interesting project. But it all depends on picking the right pieces. Hanging your favorite animals, cities and plants can be personal. But geometric, abstract prints is universal; they can do no wrong. They add life to the walls, garnering a small reflection of your personality without being overt. And for a guy, it's always smart to stick to abstract pieces. You want to keep it simple, modern, but abstract enough to impress the lady. Check out the inspiration above to get you started.