Anya says

The other day Ed and I were talking. He had gone out for Chinese with the work guys the previous night and one of the guys was saying,"Ed you gotta try this.."
In true Anya style she had to be part of the conversation so she parroted back,"Edward try this, and Mamaward try this."
She obviously knows he Papa's name is Ed but she doesn't know my name is Leah!