Get accustomed to using the eyepiece instead of the display screen. You’ll be better able to tell when your subject is in focus, especially when there’s a backlight, which is a big issue with many of these hand-held cameras. Keep both eyes open. Otherwise you lose peripheral vision on the entire left side. Also, this way you can maintain eye contact with your subject. He/she is talking to you, instead of the man on the moon, or somebody way out in left field. Backpack journalists normally work alone so you will need to keep both eyes open to navigate your surroundings. See http://www.pbs.org/now/shows/440/Journalism-Workshop.html.