Lancer yelps and bolts up. He's just about to glare back and ask what that was for when he remembers that he is, in fact, in a church. And he is, in fact, listening to the Master giving the services.

So instead of any more sudden movements, he just sits back and listens to the Master continue on with the sermon. When the Master's back is turned though, he looks back.

"...Thanks."

He whispers.