"Well you're pretty good at it." Bruce's eyes are half open now, watching him, another small smile on his face. He understands. Most people aren't fluent in body language, and would need the opposite-- more talking, less touching. And of course, Bruce can't make even that easy, letting barely anyone in. When Clark leans down to press a kiss somewhere high enough - his neck or shoulder, maybe - Bruce lifts his head a little to get his attention so that they can share a soft kiss.