A lot depends on what "foreign country" you are visiting. English is spoken, at least to some extent, in many countries. You can get by very well in those.

I agree that learning a few phrases in the local language before the trip can be helpful. After basic greetings, I'd suggest something like "Do you speak English?" Followed, of course, by the very important "Where is the public lavatory?"

Make an effort to learn how to say "hello," "excuse me," "thank you" and "good-by" in the local language and you will be surprised how much the locals will make an effort to communicate with you.