"What? I got every confidence in you buddy." He gives him a sarcastic thumbs up. What he means is that he's got every confidence in his ability to terrify Carlisle into doing what he wants, and if that fails physically picking him up and mashing his face into the wall and hope his blood is enough to eat through it.

But he'd rather not get his hands dirty.

"Practice makes perfect, I'm helping. How are you gonna learn if you don't do?"