If you wash netilat yadayim and then a non-Jew says "hello" to you, should you: say "hello" back and wash again? try to acknowledge him without actually talking? or ignore him (doesn't seem right)? ...
After washing one's hands before eating bread, one is not supposed to talk until he has made Hamotzi and partook of the bread. I understand that general chatter is not allowed. But what about for ...