My friend says that she is a medium...?

She is telling people in my class that she is a medium... She told me that it;s not true, but she likes the attention good or bad, I honestly know that I am MORE of a medium than she is even though we are not, I totally believe in that stuff and all, but I dint think that she should be doing that because it could be offensive to anybody who is a part of the supernatural..."medium ship, prophetess, telepathic" and all that ... What shpuld I do?