After my 60 days total juice reboot ended earlier this year I too was concerned about the eating out side. However I found with all the skills under my belt and all the research I had done, that all ended up being good.
One of several things I did immediately afterwards would be when invited to a restaurant, for example, was to check out the menu online of a restaurant ahead of time. I would choose foods from there and stick to it. I also recall going to a huge buffet place for a birthday celebration. Rather than eat the foods shown I found a Thai chef who made me some special dishes that I knew of. I also ordered fresh juice served in cocktail glasses. Additionally, I joined a lot of healthy food sites... Many vegan...and wella! No problem. Loads of recipes; also check out the tabs here on Joe's site.
Near a year later since my beginning here on this site, I just know what to avoid. It will all come to you in time. No worries.