While they talk, you remember that you are with the lamp, you feel in a way to try to hide it, it bothers you, Jon notices how strange you are, and sees behind you:
Hey, what's that behind you, I think it bothers you, oh, it's a lamp like stories, maybe it's a real magic lamp, that's why you hid it, let's see. He says grabbing the lamp asking for a wish, while trying to stop it .