It's not so much that she's actively trying to coax Death out of his shell. Deet just wants to make sure he has the opportunity to step out of his shell if he wants to, and intends to stand right there with him the whole way.

She considers the question and concludes there wouldn't be much point in Truth. As close as they've let their minds mesh, she doesn't have many secrets from him. "Ohh...Dare, please!"