Study and practice, pretty much as anything else. I can recommend these 2 books I've read on the subject: Amazon.com: The Photographer's Eye: Composition and Design for Better Digital Photos (9780240809342): Michael Freeman: Books Amazon.com: Learning to See Creatively: Design, Color & Composition in Photography (Updated Edition) (9780817441814): Bryan Peterson: Books Basically, even though you don't always have your camera with you, you'll always carry your eyes... So, you can pay attention to how light and colors behave around you under different conditions and moments of the day. Try also to find other basic elements of design such as lines, repetitions, shapes, form, textures, etc etc... They're everywhere and you just need to take the time to SEE them.