Pubs! Are you going to the United Kingdom?
First -- you do have some lead time -- and while this may sound wacky, you can certainly check recipes for common foods of the countries you're visiting to get an estimate as to the ingredients. (if you're doodle around at all in the
www.weightwatchers.com website, you can even look up internation foods for an idea as to their points.)
Next thing you can do is eat something "good for you" before going out -- there's always a piece of fruit or a serving of yogurt or milk before you go (a glass of milk 1/2 hr or so before a meal is really filling -- I don't know why -- but it is, and no, I don't work for the dairy council!)
You can also ask the server for the daily vegetable as a substitute for other accompanying items on the dish. They may not be accustomed to it, but they'll do it.
You'll do fine -- either way -- with your guesstimations. I can understand you being leery of the foods overseas, but we all were, of our own "home grown" menu items too, at the beginning.
OH! And one other thing -- if you have a chance -- stop off at your local WW center and pick up a copy of the "Complete Food Companion" that has a pretty good list of international selections.
Good luck, safe travels, have a great time, and SAFE HOME.
Ellen