User blog:SofB/Really Quick

I don't get one thing on Breaking Dawn Part II Movie: When Charlie's coming to visit Bella for the first time as she is a vampire, when the Cullens are advicing her of how she must act, Carlisle says: Hold your breath, it will help with the thirst. And then, Edward says: Just don't forget to move your shoulders so it looks like you're breathing. Can someone explian it to me? it doesn't make sense and there are two opposite objects