Board Thread:Spoilers!/@comment-24674051-20150720164321/@comment-25926288-20151001160120

Chameleon-Guy wrote: O-oh, in the new sneak peek, it seems like Regina uses the dagger to make Emma shut up so she can say the is the Savior. That's more ambiguous. She touches it but it doesn't mean she actually used it. It also could be to remind the audience that she has the dagger. Or she showed Emma the dagger to remind her what she has become.

I'd wait for more context....unless that's the first scene, lol. I'm sure Emma will say something if Regina commanded her too.