One thing I noticed about editing my second novel, soon to be published in 2014, is my propensity for head hopping. Years ago that was an accepted form of writing novels. Instead of each scene having the characters own story and point of view, writers used to be able to mash all characters point of view all in the same scene.
I didn't find out about the rule against head hopping until I took an online writing class on synopsis'. The teacher pointed out to me that I needed to pick a character and stick with only their thoughts for the scene. Huh? Only what they can feel, see, touch, think...etc? At first I remember the transition to be a nightmare and then as I read back my work, the problems began to appear to me and I saw how confusing head hopping could be. If you suffer from head hopping, don't worry, you're not the only one. Here are some guidelines to help you.
NARRATION AND DESCRIPTION
When first starting a novel, I use stream-of-consciousness journaling to bring out the character’s personality in the parts where he’s thinking or planning or worrying or ruminating, not just when he/she is interacting with others, but just them by their selves. Have him ranting in a personal diary about the people around him, what’s going on, etc. Also show his deepest fears here. Then use this wording to show his personality more in the scenes. This not only teaches you to writing through one characters eyes, you also get to know them as a person. Bringing out their character will also help you with the plot.
An exercise for you to try until you get the hang of it, is writing the scene using first person. You can switch back later. Write a whole scene, or even a chapter or two, in first-person narration/POV to get the rhythm and flow of that person’s language patterns and attitudes. Write the scenery from their point of view. Don't forget to use the senses. Once that's written change it back to 3rd person and you have your scene. Just make sure you change everything back or you'll be switching more than just Point of Views.
This may seem like a lot of work, but once you get the hang of writing only through one person's eyes, you won't have to do it anymore.