Domestic Photographic

I quickly tried out backlighting on our evening walk. I didn't have as much time to work on my settings as I wanted because someone (Read: Calin) just wanted to walk to the store and not pose for a million pictures. Unheard of. Anyway, this is what I got. I took some on manual, those weren't good, then I switched to no flash mode before someone (Read: Calin) took my head off. What settings do you use for successful backlighting? I can't wait to get out and try again. I'm also pretty sure these are all OOF. Ugh.