My teacher says that we should avoid あなた, like わたし, which could be taken off. Following this, I try to refer to the second person by the name: 加藤さんの趣味は何ですか. But there are situations where we forget ...
I have occasionally heard and read instances, where a person has referred to themselves as これ. My Japanese dictionary also lists "Me, I." as a definition of これ. Now, this obviously isn't used as ...