Lisa! said:
Why do people misunderstand each other sometimes? You're talking to a group of people and what you're saying isn't difficult or strange to understand, but some of them misunderstand you. I know it's inevitable sometimes, but it's really strange and funny sometimes.
In my experience, misunderstandings tend to come from either unusual ways of communicating or false expectations. For an example of the former, if you try to say
"I took my dog for a walk,"
few people are going to assume you said,
"I mistook my dog for a wok,"
even if it sounded exactly like the latter. That's because this is a "normal" sentence that people are familiar with. On the other hand, if you say,
"My dog led me from block to block in exercise together,"
the listener will have to do a lot more mental work to figure out what you meant. This is probably because, in our brain, sentences are not logically reinterpreted each time they're heard, but are to some extent matched with things we've already heard and understand -- past patterns with which we have an association.
So if you're having trouble with people misunderstanding you, it might be, as has already been suggested, that you're just speaking in an unusual way. Not that I'm a big fan of "normality", but it has its advantages. I know of at least one person in my life (Iranian, somewhat unfamiliar with the language) that has this very problem. It's not that he doesn't know a lot of English words, it's that he uses them in strange ways.
On the other hand, people sometimes get confused for a different reason -- false expectations. I think that the way we interpret people depends not just on the pattern of their speech, but on a whole truckload of other information ("impressions") that we've gathered about that person. Our interpretation will be some combination of what we actually heard and what we expected to hear. If people are consistently misunderstanding you about the
same thing, then my advice would be just the opposite from the previous case. Communicate in a different way and force them to develop new mental patterns that will be consistent with what you're trying to say.