Forget that stuff your mother told you about how it's rude to point. When it comes to travel, you can't do better than to Point It according to the creator of this handy dandy book:
Should you ever find yourself in the unfortunate position of having to navigate a foreign land filled with foreigners who eat weird foreign food, speak a weird foreign language and who probably don't even go to church, DO NOT PANIC because help is at hand - literally. Just flip to the appropriate page, gesticulate forcefully at the photo that best represents your need and repeat the word loudly in english. (the louder the better.)
I do have a few suggestions for the publishers if they opt for a 2nd edition. The following would have really come in handy on my last trip.