interpret for someone
to translate speech in a foreign language for someone. (Interpreting is done in real time.) Nina interpreted for Michael, since he understood very little Russian. Is there someone who can interpret for me?
interpret something as something
to assume that something means something. Don't interpret what I just said as criticism. It will be interpreted as criticism no matter what you say.
interpret something for someone
1. to translate a foreign language for someone. (Interpreting is done in real time.) Couldyou interpret the ambassador's address for me? Nina interpreted the director's greetings for the visitors.
2. to explain something unclear to someone. Let me interpret the instructions for you. The instructions have been interpreted for me by the manager.