Holmes wishes the plan involved pulling Watson into his arms, and holding him, and kissing him, and forgetting about about the world around them; but then, that habit of theirs is partially responsible for the situation they're in now, isn't it? He shakes those thoughts from his mind and instead turns Watson's hand in his own; he traces his fingertips down the length of Watson's fingers, over the pads of his hand.

"From here we must out-deduce Moriarty. We'll get off at the next station, leaving our bags behind -- sorry, old fellow -- and make for Paris. Moriarty will still be on the special he no doubt caught in order to pursue us to our perceived destination."